Ultralight Backpack Ventilation Frame by Vaucluse Gear

"This ventilation frame works. 23 mile hike in the White Mountains of NH, including the Bonds and Zealand. Just under 12 hours elapsed time. Temps upper 20’s to low 30’s.

I hike every week, all year, in all temps and conditions. A sweaty back can be a real problem in cold, winter weather. My back would always get sweaty, then freeze when I stopped to take my pack off to make a gear change, eat, etc. Having used this frame now for a few weeks, I have not had a sweaty back. Plain and simple… it works."

- Jim, Savage Gear Jackpot 40L, New Hampshire

"My back remained cool throughout, and I didn't experience any sensation of heat, moisture, or sweating like I do when wearing a frameless pack. I didn't experience any post-sweat chill when taking off the backpack. While taking breaks, I did feel the chill of the wind, but I didn't experience any post-sweat chill today. There is a slight sensation of something being there.

If I were to carry it for a long period during an overnight hike, there might be some discomfort on my back. For day hikes in hot weather, I feel it is fine to use it actively. With backpacks like the LifeAF or Zpacks Nero, which have bungee cord attachments on the back, this frame can be securely fastened, so it feels like a good match."

- Mountain Goat Hikes YouTube channel, LiteAF 20L Curve, Kasugai Three Peaks, Japan

"I hiked Kepler, Milford, and Routeburn Tracks in NZ covering 85 miles at 30 min miles, hiking 4-6 hrs per day in cool weather from rainy in full rain gear to cool but humid conditions.

The ventilation frame performed superlatively. It was comfortable, at times completely unnoticeable, while keeping my back much cooler. If it didn't rain, the backpack was completely dry. My shirt was as significantly drier than without the frame. Essentially, the only sweat lines I had were where the hexagonal portions touched my back. Basically, I was as dry as I could possibly be considering I was sweating from effort, and not from my backpack sitting on my back."

- Sang, Hyperlite Southwest 3400, California

"I attached the Vaucluse Gear Ultralight Ventilation Backpack Frame on a Gossamer Mariposa 60L. Hiking Big Cypress North on Florida Scenic Trail. 23 miles day 1. 8 miles day 2. Almost no elevation (it's Florida!). 23 hours in 8 hours moving. I burned 3400 per Garmin. The weather was humid, 85, and sunny for the first day. The second day was rainy.

The airflow on day one was AMAZING! While I was still hot, I could feel the breeze on my back, and it was HEAVEN! An absolute dream to not have a hot, thick pack sitting on my back.

My friend hiking with me had heard of them and was quite taken by how great this was. My pack and shirt were both marginally wet. But mostly just from where my hips/butt touched the bottom of the pack. I wore a tank top all day and had no discomfort hiking all day. While I could feel the plastic, it was not irritating at all. I had zero hot spots or chafing from it."

- Amber, Gossamer Mariposa 60L, Florida, @liveliftrun

"My background is camping and hiking, Search and Rescue, Rope Rescue, EMR (wilderness first responder and medical gear), and hunting. I have three decades of experience with cheap, expensive, and too much and too little gear on my back.

First, the frame breathes! Not just seeps or wicks, but this BREATHES like a menthol rub across my back with the slightest breeze or movement, so this will now allow a backpack or at least a hydration pack on windless summer hikes in the Phoenix Valley. We hike even above 110 degrees. The heat and moisture ventilation means you can stay in long sleeves and regulate body temperature better while protecting yourself from the sun and the elements. It removes any compromise that would jeopardize health and safety.

Second, the frame gives structure to frameless packs. It adds enough structure to make a good "car bag" great for several miles. I'm eager to see what my heavy, sausage-shaped car bag can do on a hike over four miles and will report back after.

Third, the frame distributes weight! I feared it would cantilever the load and pull my center of gravity back. Sure, I can't deny physics, but so does an expensive pack's attempt at foam and mesh with only a fraction of the benefit this sturdy breeze tunnel creates. I was waiting for it, even expecting it, but I didn't experience a sense of the load being over-leveraged. The frame distributes more evenly side to side and up and down.

Overall, I'll be buying more frames for family and friends. I cannot wait to try it on cold camp hikes and on Phoenix Valley summer trips."

- Jeremy, Norfuma Tactical Rack Bag 36L, Cave Creek, AZ

"I attached the ventilation frame to my North Face Recon (30L). My back was dry. I started with three layers: synthetic shirt, fleece jacket, and puffy. With all three layers on, I didn't notice the frame at all (very comfortable). With just two layers (shirt and fleece), I did notice the frame a little, and every once in a while, it felt a little pressure on the mid-right side of my back, but then it would go away. My pack was fairly light, probably around 10 lbs total. I imagine without the fleece I would feel the frame more with just a synthetic shirt on. I will try this when it warms up a bit."

Note: Vaucluse Gear has released a mesh sleeve that goes over the frame in response to customers' requests for additional comfort.

- Jake, North Face Recon (30L), California

"We hike 3-10 miles in the mountains. and mountain bike. both generating a lot of sweat so again, the frame is a dream. The airflow was awesome. Feeling an actual breeze between myself and my little dog is great. Shoot, did i mention that’s what my two backpacks are for? Carrying my 10lb dachshund on my back. So, before this, my back would be so sweaty. I hated it. But after our first 6ish mile hike with this, minimal sweat, and only a few of the touch points where the spots of the frame touched my back."

Note: We are soon releasing a mesh sleeve to provide additional comfort to those who want more. Please check our product catalog for more information.

- Rikki, K9 Sport Sack, Georgia @rikkidiculous

"I installed the ventilation frame on my Osprey Kamber 32. Uphill skiing, resort laps, first test run. 1 mile skin up. Thirty minutes for each uphill skin lap. Total time: 2.45 hours.

The pack was dry, and the back was dry. I use a NorthFace steep series full-zip hoodies for my base layer. I did not feel the frame was uncomfortable, but I am concerned that it will wear on my expensive base layer garments, as they’re approaching $200."

Note: We are soon releasing a mesh sleeve to provide additional protection to those who want more. Please check our product catalog for more information."

- Keith, Osprey Kamber 32L, New Hampshire

"I installed the Vaucluse Ventilation Frame on my Gossamer Gear Mariposa 60 liter. I went backpacking on the Sheltowee Trace (Kentucky), 32 miles, over three days. The weather was cool and cloudy, with temperatures in the upper fifties.

I sweat quite a bit, but my shirt was not as bad as usual. I think the air flow was way better. My pack stayed dry, and my sit pad, which is on the back of the pack, was dry, which is a big improvement for me. I was worried that the frame might rub, but no."

- Susan, Gossamer Gear Mariposa 60 Liter, Kentucky

"I wear a Mardingtop 50L Internal Frame. I am here in the Four Corners area of New Mexico, near Aztec. Beautiful High-Desert Country with an elevation of approximately 5,800 ft. I used the Vaucluse Gear ventilation frame hiking around the canyons on a good 7-mile stretch up and down, and through canyons and sandwashes. I like to spend as much time as possible exploring and rock-hounding, so I take longer than if you were just moshing through to get to point A to point B. I spent approx 5 hours out and about with my backpack on at all times except for kickback sessions. The weather was considerably warm in the upper 60's.

The ventilation frame fits well on my pack. I usually start off wearing a jacket and there were no issues at all. My jacket and back stayed dry, compared to times when I didn't have the ventilation frame. I couldn't even tell it was there, and I had no issues with comfort."

- David, Mardingtop 50L Internal Frame, New Mexico

"I have only had 2 hikes with the frame. The first was about 7 miles, 2000 ft elevation change, 50 degree-ish temps in the Shenandoah National Park. The second was 10 miles, 2000 ft elevation change, 30-degree temps also in the SNP.

During my 50-degree hike, I was pleased that my back was dry throughout. Normally even at 50 degree, my back would have been soaked and then I would get cold when I took my pack off. I could feel the frame on my shoulder blades through a single layer t-shirt. I would not say it was uncomfortable, just an awareness.

On the colder hike, I had multiple layers and did not feel the frame at all. No sweating at all anywhere that day. I look forward to testing the frame on a warmer day with a single layer to see if there are any hot spots."

- Kathryn, ULA Ohm 2, small torso, Virginia

"I added the frame to my Hyperlite Mountain Gear Daybreak 17 on two hikes, 5-6 miles each, around 1,500 ft. elevation gain at 10,000 ft. Both clear weather in winter, around 30-40 degrees.

The Ventilation Frame performed quite well. Even in winter, I usually sweat quite a bit with this pack, given the pack is Dyneema construction with no built-in ventilation. With the frame, I sweat far less, and I kept my jacket on to stay warm (I usually compromise by either being somewhat cold and less sweaty or warm and having my back soaked). However, comfort was a slight concern towards the end of the hike. The distance between the pieces of the frame became noticeable as they started to dig in a bit towards the end of the hike. The frame moved around more with a lighter load (e.g., when I had my spikes/mid-layer on, so the bag wasn't as packed out, much like it is in the photo). This wasn't a huge issue; it just made me slightly less confident when maneuvering around trees, etc. Overall, I'd give it a 4/5."

- Nick, Hyperlite Mountain Gear Daybreak 17, Colorado

"I hiked Hamilton Mountain in Washington, 800' to 2400'. 6 miles. 3 hours. Sunny and suprisingly 70 degrees.

This was the first time I used the frame since I got it. Because there is no place to attach the frame on the bottom of my pack it would have to be adjusted a time or two. The airflow was nice, and my back felt cool versus covered and sweaty. My backpack was totally dry. My shirt had some slight moisture from the contact points but nothing that was a bother. A wanted expectation fulfilled."

- Ron, Teton Sport Oasis 22L, Washington

"I used the ventilation frame on my Mystery Ranch 3-DAP. Right now, I’m using it for traveling and everyday applications. I’ve also been using it on daily urban walks of around 3 miles a day, with a duration of 45- 60 ish minutes, depending on the route and additional tasks, and relatively flat with some slope. I put around 15 lbs of weight (gear/water bottles/etc.). So far, so good! I’ve been wearing a midweight synthetic-filled jacket for the 40-50 degree weather.

I am a heavy sweater, so it is easy to notice the benefits of the frame. The airflow is easily noticeable while wearing a midweight, synthetic-filled (core, not arms) zip-up North Face jacket. I sweat a good deal, but using the vent frame performed well. The backpack was dry. The shirt was slightly damp, significantly less than if I hadn’t used the vent frame. The comfort was ~8.7/10.

I was pleasantly surprised about the comfort. While sitting on a granite block, back arched, I checked how the vent frame felt in rest mode. I noticed some MINOR discomfort- I would roll my back to see how the frame put pressure on me. They weren’t natural movements, just me rolling my shoulders and moving my back, and after a time, the discomfort lessened. And there probably wouldn’t be the same MINOR discomfort for someone with more defined back muscles. And for someone who had more fat on their back, the same. During normal walking, it was comfortable."

- Oliver, Mystery Ranch 3-DAP, New York

"I used the ventilation frame on an Osprey Daylight. Hiking between 5-9 miles on medium to rugged terrain in the northeast US. In the fall and winter, mild rain, snow, clear skies, and wind.

The airflow on my back with the Daylight is superb! My jacket/shirt stays dry, no sweaty back. My Daylight stayed dry, too (on the back). I only carry about 5-7 lbs in the day pack. The frame is very comfortable. I don't really notice it's there except that I can feel lots of airflow and breeze on my back.

As a ventilation system, it's great. However, what I need help with is that the top hooks that go around my backpack straps and snap into the frame come undone (note: We now provide reusable zip ties, which have solved this issue). I look forward to trying it out in the spring and summer!"

- Suu, Osprey Osprey Daylight, Massachusetts

"I added the ventilation frame to my GoRuck 21L. I used daily it for seven days hiking through trails and neighborhoods in/around Cincinnati, OH with my dog. Weather was icy/wet/dry and ranged from below freezing to mid-50s. Four-miles-per-hour pace, and for times ranging from 45 minutes (three miles) to 3 hours (12 miles), with weights ranging from 25-45lbs (depending on the day).

The ventilation was great! My back didn't get nearly as sweaty or soaked as it normally would. I still had some sweat, but it wasn't soaking through however many layers I was wearing. It generally stayed to my skin and first layer.

I can definitely see using the frame with a light day pack, but I do not recommend using it again for anything above 15lbs."

Note: Vaucluse Gear is releasing a mesh sleeve that goes over the frame in response to customers' requests for additional comfort.

- Joe, GoRuck 21L, Ohio

"I just got a Bearvault 425 (bear canister). The smallest one. I eat keto and intermittent fast, so i hope to be able to hike long distances with less food. I wasn’t sure if a Bearvault would work in my Cutaway. It fits, but was uncomfortable — until I attached the Vaucluse! This is a huge selling point for your frame and you should advertise it that way for PCT hikers and anybody needing a bear canister. I was worried I’d have to swap out my cutaway for my zpack’s arc haul. I love the cutaway and lack of hip belt. The only worry I’ve had for the entire PCT has been the bear canister sections—and now I’m golden.

Airflow is great but I wish the frame were 1-2 inches shorter for my 16 inch pack backside. The Nashville has an underneath pocket so it’s important the frame not get in the way. It works as is but would be better if shorter."

- Rick, Nashville Cutaway 30L Ultralight Backpack 16 inch, New York

"I’ve tried it for about 12 hours of hiking now with about a 10 lb pack. I originally bought this to use with a Zpacks Nero to help with back sweat. Since then I’ve also tried it with a Gossamer Gear Fast Kumo with amazing results.

My first impression after 5 minutes on the Nero was that the frame is fairly narrow and it feels a bit strange on my back. After 4 hours I barely even noticed it. My conclusion with the Nero is that it works okay but it adds a couple ounces and I would probably be better off with a Zpacks Arc Haul since it already has great ventilation.

Then I tried it on a Gossamer Gear Fast Kumo. The Fast Kumo is already a narrow pack. After cutting off the hanger at the top of the frame it fit perfectly. It’s like it was made for it. This pack is designed for fastpacking already so it’s easy to get hot. Using it on a 12 mile hike I would still sweat a little but it’s way better than the original pad and GG’s own ventilation pad. It’s a great combo and I can’t wait to get out on the trail with it again."

- Daniel, Gossamer Gear Fast Kumo, Georgia - click to read original Facebook post

"I have have three back packs. My main one is a custom moose track pack body with a Gossamer Gear hip belt and six moon designs running vest style flight harness. I took the UL ventilation frame on an 11 miles hiking ,running and jogging - some low elevation various pace. Cold weather.

Air flow was great - almost to cool. Backpack was dry. Back was only damp where frame makes contact. Comfort was okay. Experienced some pinching between frame and shoulder blades when I would run fast with arms moving quickly and shoulder blades sticking out some."

- Anthony, Custom Backpack w/ components from Moose Track, Gossamer Gear, and Six Moon Designs, Iowa

"I used the ventilation frame while rucking 3 miles a day, which included running uphill and rucking at varying elevations. Rucking occurs rain or shine and at 5 a.m. or 5 p.m. I use dry-fit polyester shirts that get soaked.

The frame has helped increase airflow. It is a bit uncomfortable due to the weights on the backpack. My back has the frame’s outline pressed and red into my skin. Also, the lower backpack straps where the frame attaches to the bag rub my back."

Note: We are soon releasing a mesh sleeve to provide additional comfort to those who want more. Please check our product catalog for more information.

- Javi, 25L Goruck Rucker 4.0, Texas

"I attached the ventilation frame on my 5.11 LV Covert Carry 45L. The airflow was excellent. On cooler Florida days like today, I usually end up with a sweaty back, and everything else is dry. No issues today, and I can feel a breeze when I walk. I really like this.

Comfort is also pretty good, but I feel a few things missed the mark. First, the loops that connect to the top of the backpack straps come undone almost every time I take the pack off. I had to wrap them in electrical tape to keep this from happening. If the connections between the frame halves and the loops at the top were more secure, it would be an absolute home run. Overall, I am very impressed; maybe the next version can address these issues."

Note: Vaucluse Gear now provides additional reusable zip ties to assist in securing all the connections of the top loops. This resolves the user's issues.

- Sean, 5.11 LV Covert Carry 45L, Florida

"Installation of the Vaucluse ventilation frame was simple: took no more than two minutes. The frame weighs just a couple of ounces, so I knew the weight wouldn’t be an issue.

My impressions of the frame are totally positive. As advertised, it eliminated the sweat that would build up between my back and the pack. Truly amazed that the ventilation gear performed in this area so well.

Backpack manufacturers have gotten very sophisticated with the design and fit of their packs. I was concerned that using the Vaucluse Backpack Ventilation Gear would negatively affect the pack’s performance. Turns out, this was not an issue at all. If anything, it improved the performance of the pack.

Weight distribution was not a problem. Even though I had space between my body and the pack, the pack remained very secure, and did not drift as I walked, climbed or descended. In summary, I highly recommend the Vaucluse Backpack Ventilation Gear!"

- John B, REI Co-op Traverse 32L with a 3-liter hydration bladder, Cave Creek, Arizona

"The frame will fit just about any backpack you can think of. One of the best things about it is the price and discount.

The frame was comfortable. I did not notice it on my back after a short period of time. It did feel a little strange when I first put it on. Even though it is very strong vertically, it flexes so well that it conforms to whatever back shape you've got. With the backpack pressing on it, it just provides a little bit of a shock absorber.

I was concerned about pushing the backpack off of my back; however it doesn't make a huge difference. If you think about some of the packs out there, there is a wider gap between the ventilation screens and the pack.

If you are tired of having a nasty sweaty back and don't have a pack with good ventilation, or you don't want one with the mesh built in, this Ultralight Backpack Ventilation Frame might be just for you."

- Doug, 28L Waymark Mile Daypack, California, YouTube Channel Backcountry Pilgrim

"Miraculous! I purchased the Generation 1 Ultralight Frame one a year ago and loved it. The original one blew apart from overuse. Now I am due for another one (Generation 2 Frame).

I use the frame hiking in New England in all of the seasons including winter. I hike about 20 -40 miles per week. Elevation is variable. I completed The 2, 3, 4th tallest peaks in New Hampshire in one day last summer with the Vaucluse Gear Ventilation Frame. It was fantastic in June. No sweat."

- Jonathan C., 54L ULA equipment model CDT, Berlin, CT

"The frame's plastic (High-Density Polyethylene (HDPE) is FDA-approved, recyclable, non-toxic, and used to make food containers such as milk jugs) conformed to my back shape, which I consider a plus. It feels flimsy, though held up well. It definitely helped with keeping my back dry.

The male-to-female connectors on the loops were easy to knock loose from putting the pack on/off, and from branches, etc." (Velcro is now provided with the frame to better secure loops).

- Ben V., 30L Daypack, ModGear hydration pack, 16" x 9" x 3" main compartment, West Brook, CT

"Yesterday's hike was pretty wonderful. Even more so because I finally tested out the ultralight ventilation pack frame I bought from Vaucluse Gear.

It's not a secret (any of my hiking partners can agree): I sweat. A LOT. Embarrassingly, to the point I soak literally everything I wear on the ascent often joking to help make my pride feel better about how I look like a wet poodle. With Floki's added weight(+15lbs or more) on top of all my other gear I have been desperate for some sort of solution.

I heard about this frame on a @slasrpodcast, and it simply attaches to my pack easily and provides a space between my pack and back to help create space for airflow, reducing the heat my back puts out and minimizing the sweat, at least in that area, helping with comfort and cooling. Now to only figure out how to help my head because that's where most of it comes from. Damn Scottish genes. It worked really well and definitely minimized heat, and my pack was dry when I returned to my car. I'll take that any day!"

- Melissa, 30L Daypack, The Cherry Mountain Trail a.k.a. 1.8 of Vertical Hell, New Hampshire, @adventureswithflokicat

"I had doubts about the comfort of an add-on backpack ventilation frame, but after a few minutes, I barely noticed it was there. It's a terrific product!

I sweat a lot during exertion, especially with my UL frameless packs that offer no ventilation but hug the body well. The Vaucluse Ultralight Ventilation Frame performed exceptionally well. It is so light and surprisingly comfortable. For my first run, I paired it with my Mountainsmith Zerk 30 Pack. I loaded the pack up with about 14 pounds of weight. I feel that I could load up to whatever the pack is rated for without issue. One of the best incentives that this product offers for me is the "no cold back attack." When you take a break after hitting a saddle or summit, I like setting down my pack for a break. When you're ready to head back out, you throw your pack on, and the cold sweat from your shirt and pack hit ya is soooooo annoying to me. The Vaucluse frame fixes that for me with no issue. I also love that I can easily hot-swap it onto my other packs."

- John W, Mountainsmith Zerk 30 Pack, Phoenix, AZ @jvasholz83

"The airflow is far superior with the frame than without. It kept my pack dry, but my shirt took all the sweat. I noticed that the sweat could dry quicker even with the pack on since there was airflow. The comfort was on the high end of the scale but would easily move out of place (my packs don’t have adequate tie-downs for the frame).

I also think that the top and bottom parts of the frame should have half-sized mid-supports so the frame doesn’t fully collapse."

- Jaeger, 3 packs: Rei flash 40 and 55 and a Granite Gear Perimeter 40, Washington

"I am a park patroller in the Denver metro area, so I’m excited to use the frame to provide more ventilation. I could tell a noticeable difference in ventilation, especially on the day pack since it has no attempt at ventilation whatsoever, but even with the Granite Gear, which does have an attempt at providing some ventilation. The Vaucluse did a much better job.

I was wondering if the bottom of the frame would irritate my back around the belt, but it did not do so. The pack still felt close to my body, and an added bonus is that if I do happen to pack my frameless pack not totally flat, the frame evens out any bumps.

It’s easy to switch the frame from one backpack to another."

- Rolf D, Volpi Outdoor Gear “Falco” 25L pack (18”H, 12”W, 5”D) and a Granite Gear 60L Crown 60 - Denver, CO @rolfdenvers

"The ventilation frame worked incredibly well in warm temperatures. I had noticeably less sweat on my back and it felt much cooler than days that I didn't wear the frame. It actually helped more with the Targus bag because that bag doesn't have a frame built in like the Osprey. Both backpacks benefited from the increased airflow the frame provided, but the Targus backpack was also benefited by the structure of the frame."

- Adam C, Osprey Talon 22L and Targus City Backpack 20L - Seattle, Washington

"As for using it as a baby front carrier spacer (which, to my knowledge, there is nothing on the market), it was a little tricky to hold it in place with a light blanket and mount him, but it did work pretty well. I went on a walk in 80+ degree weather, which generally I would be soaked with sweat, even with putting a towel between us.

One thing I’ve loved about Osprey backpacks is what I thought was the ventilation. But I didn’t realize what I was missing. Adding the additional ventilation to the Osprey Poco Child Carrier made it that much more enjoyable and less sweaty. Hooks in nicely, and I could definitely feel the breeze coming through."

- Matthew R., Lilly Front Baby Carrier & Osprey Poco Child Carrier Backpack - Kent, Washington Instagram @MatthewJRichey

"The airflow was good. The frame works for keeping me non-sweaty. The mid-layer or base layer is always dry. It works as intended.

The problem is the connecting spikes in the exoskeleton come out of their holes (especially under load) and will jab me in the back. This usually happens when walking and adjusting the pack on my back. It’s a major design flaw of the exoskeleton. If the frame could be made in one piece instead of two pieces, this might eliminate the issue."

Note: We are taking this feedback into redesigns of the frame. For the majority of activities, the frame's spacers are designed to stay connected.

- Jonathan, Osprey Daylite Daypack, California

"19-mile hike for my 44th high peak climb Mount Allen in the Adirondack High Peaks. The frame fit perfectly on my 3FUL 55-liter backpack. I was carrying about 20-30 lbs with overnight gear. I noticed the frame massage on my back the first 4 miles and was worried it would act like a cheese grater. The vent worked on the long walk out 9 miles and the slab climbing up Allen.

The frame didn't cause any abrasion or bruising on my back. I was overall impressed with the quality and durability, and comfort. I could see my friend's back was a sweaty mess. My back was dry, as was my backpack. The temp was only 59 degrees Fahrenheit. I am most excited to try this on my winter climbs, where back sweat can be dangerous at freezing temps."

- Phillip, 3FUL 55-liter backpack, Central New York State

"Normally with this backpack, my back is soaked regardless of conditions as long as the ride is more than 10-15 minutes. It's basically just due to the nature of the dog being strapped into the bag With the way the dog sits inside, it causes the bag to stick directly to you back.

Using the frame, it pretty much makes it so your back is dry the whole time with this bag since there is no contact. It's much much comfortable to bring my dog on rides with me with the frame."

- Allan, 13x21x10 Kurgo G Train Dog Carrier, 12 lb dog inside, Rhode Island, Instagram @olliepop_ri

"Frame installed on Heritage GR1 26L and a 40L top loader. Although it wasn’t a super warm day in NYC, there was no sweat build-up on my back nor visible on the bag. There were about 20 lbs of Flushing Groceries on my back, and I felt every breeze. The venting from my first use case was a shock. Amazing product! Although I did feel a bit of tension on my back after about an hour of carry, it went away after a while. Who knows, maybe this venting system can dub as a posture device as well."

- Sunny K, 26L and 40L backpacks, New York, New York

"I installed the ventilation frame on my ULA Ultra Catalyst and took it on a 12 mile hike with 40lbs 2300ft elevation gain over 6hrs. When hiking on flat ground, it was ok shirt was mostly dry. Experience discomfort (I/m 6'5") as the frame sits high on the pack and doesn't cover my torso. I would like the frame to be longer to accommodate my longer torso."

Note: We are releasing a mesh sleeve to increase comfort level for packs with heavier loads. 40lbs is pretty heavy. We will look into making longer frames.

- Andy, ULA Ultra Catalyst, Maryland

"The ventilation frame did just what it was supposed to do. My back was noticeably drier and, more importantly, cooler. There was zero chilling effect once the pack was removed at camp. In fact, you couldn't even tell I was sweating. Comfort-wise, it was great. You could feel it, but it was not intrusive and, in fact, kinda massaged my back while hiking.

We spent the night on the Indian Grave Ridge Trail west of the Shenandoah Mountains. Day 1 was all uphill, and the trail covered 3+/- miles. Because there was no water on the trail, I carried 6L in total. Hiking to camp took around 3.5 hours, and the elevation gain was 1470 feet. The weather was perfect."

- Rodney, ULA Circuit 68L, Virginia

"I attached the frame to my backpack during a trip to Disneyland. It fits perfectly inside the built-in luggage strap, keeping it very secure. The top connectors that are supposed to secure around the straps kept popping open, but with the other backpack strap, it didn’t matter.

I was rather warm all day, but I did not have a sweaty back at all, which is highly unusual. It also felt surprisingly comfortable, even providing a bit of a pressure point massage."

- Josh, Designer Park Company Master Gracey Sapphire, California

"I attached the frame to my Habagat Daypack, which I purchased in the Philippines 20 years ago. I took the frame on multiple short hikes in St. George, Utah. It was roughly 80 degrees, and it was sometimes breezy.

The airflow was good, perhaps not great. My pack seemed to cover some of the edges and restrict airflow somewhat. My shirt was definitely drier than usual. I was still sweating on my back, so I wasn't perfectly dry, but the sweat wasn't soaking through the clothes and keeping my back constantly wet. I thought the frame was very comfortable. In fact, I felt it was more comfortable with the frame than without.

I didn't love that when I took the pack off, the frame would move or slide off the straps somewhat. It seemed that I had extra stuff dangling off my pack and was somewhat annoying when I was taking my pack on and off. Not a big deal though."

- Robert, Habagat Daypack, Utah

"The frame worked as I had hoped it would in keeping my back cool and dry. My back had no more dampness than the rest of my body from perspiration. The comfort could have been better.

It could be that my shoulder blades are more pronounced than average. I also developed two similar bruises where the bottom of the frame contacted my lower back. I’m not ready to give up on it, but I don’t think I’ll be able to use it again without any modification."

Note: We have released a Mesh Sleeve for hikers wanting more cushion and comfort. Click here to view sleeve.

- Greg, Volpi Gear Fastpack 30L, Washington

"My back has been consistently drier on hikes with the Vaucluse Backpack Ventilation Frame. The airflow is great, and my shirt isn't wet when reaching the peak. Overall, the frame is pretty comfortable, even when just wearing a sports bra.

I was hiking a 12-mile loop in Moultonborough, NH, near Mount Shaw and Mount Roberts. The total elevation gain was 2,200 ft. The temperature was sunny and in the low 70s. I was wearing a Salomon 20-liter Trailblazer backpack."

- CeLynn S, 20L Salomon Trailblazer, New Hampshire

"The instant I put my bag back on with the ventilation frame on it and turned a breeze blew right between my back and backpack and, I was floored.

I had no idea it would be that big of an impact. My back stayed dry all day long, and I’m glad it did because when I gained altitude it got colder. Had I been sweaty, I would have had to add a layer again. As a bonus, at the end of the hike, I had no need to change my shirt before hitting up a brewery because it was dry and not sweaty. So thank you very much."

- James L, Massachusetts, Osprey Manta 24L, Instagram @james_phoenix86

"Took my Vaucluse Ultralight Backpack Frame on a photoshoot in the sunny SoCal Beaches and loved how it kept my back dry the entire time! I never knew what a game changer it is to feel the cool air throughout the entire hike.

I was able to carry about 20lbs of gear in my camera backpack and not one moment did I feel overheated or uncomfortable.

This product is ahead of its time, and I cannot appreciate the thought and care that went into producing it to make it happen! Thanks, Vaucluse you’ve made my photography trips that much more enjoyable!"

- Oli N, Photographer from SoCal with 21L Camera Bag and Black Vaucluse Ultralight Backpack Frame.

"I'm loving the frame. The biggest advantage the Cool-Dry Frame offers is helping you stay warmer once you get to your hunting location. Most of the time, when hiking to your hunting spot with a backpack, your back will overheat regardless of how cold it is.

In cold temperatures, nothing is worse than sweating in your clothes and sitting in a still position for a long period of time.

So by significantly reducing or eliminating upper body perspiration, you'll be much warmer once you get settled into your hunting spot."

- Landon (ProCaliber HQ YouTuber), Virginia, Wild Iowa Bushcraft Pack 55L

"How much of a difference can the Cool-Dry Frame make? I'm here to tell you today that the answer is A HUGE difference by allowing air to flow freely between the pack and your body to evaporate sweat quickly!

The super lightweight frame attached easily to my 36 Liter Osprey pack. It was very comfortable, so much so I forgot it was even there. Today's summit temps with the wind chill were in the single digits/teens. Normally, when I stop moving, I would break out my down puffy to warm up because of how cold I would be from the freezing air hitting my sweat-soaked back. Today, that wasn't the case. I can't wait to try this Cool/Dry Frame in the summer! I highly recommend you check it out!"

- Michael L, Rhode Island, Osprey 36L Instagram @miadevaia

"This product is life-changing. My back never got cold due to so much less sweat. I actually convinced two others to buy them, and they also had them on with excellent results.

When I set out, the temp was 18F, and it didn't warm up much during the day. Very windy on the summit above the tree line. The frame's comfort was very high. I am a heavy sweater, and although I still sweat beneath the pack, it kept the sweat to a minimum.

I occasionally felt cold air on my back which was a great feeling. My shirt was still damp beneath my jacket, but nowhere near the extent it usually is. Stats: 15.3 miles, 16 hours, 4,900 feet of elevation, and 6,970 calories."

- Tom P, New Jersey. REI Trail 25 Pack 20" x 14"

"Loved it! The Vaucluse Ultralight Backpack Cool-Dry Frame provided excellent breathability around my back. It also prevented sweat from building up and causing potentially hypothermic conditions in the winter. It is especially important to regulate body temperature during the winter when you’re layered up. This piece of gear was very helpful in that mission.

We stayed dry and happy the whole day. The frame was comfortable and lightweight. I hardly noticed I was wearing it. The design is simple, easy to take on and off, flexible enough to move with you, yet durable enough to carefully hold the pack away from your body."

- Lynn S, New Hampshire White Mountains, Kyte 46L, Instagram @swezer_outdoors

"I used the frame with my go-to 75L pack. My concern was losing stability with the bigger pack. That was not an issue at all. The frame helped take some pressure off my shoulders. My back was not soaked like usual. The next day we switched, and my wife stayed dry and happy. Both packs felt more comfortable with the frame. It exceeded both of our expectations. I really appreciate you coming up with a solution to a problem I thought I just had to live with."

CUSTOMER REVIEWS

- Jim, Savage Gear Jackpot 40L, New Hampshire

- Ryan Jordan, Owner/Founder Backpacking Light - listen to podcast.

- GearJunkie article - click here.

- GarageGrownGear.com, @garagegrowngear

- Steve from @MyOutdoorLife, Durston Kakwa 55L, Olympic coast in Washington State

- Mountain Goat Hikes YouTube channel, LiteAF 20L Curve, Kasugai Three Peaks, Japan

- Joe D, Hyperlite Mountain Gear Junction 55L, Florida

- Robert, Camelbak Octane 18L, Oklahoma, Trail review on Relive

- Apa, Zpacks Subnero 30 & Bonfus 38, South Korea

- Dex W, 15 year old day pack, Estes Park, Colorado

- Jayson, Durston Kakwa 40L, Utah

- Sang, Hyperlite Southwest 3400, California

- Amber, Gossamer Mariposa 60L, Florida, @liveliftrun

- Jeremy, Norfuma Tactical Rack Bag 36L, Cave Creek, AZ

- Scott, Hyperlite Backpack, North Carolina

- Chris L, Durston Gear Kakwa 55L, Texas

- Jake, North Face Recon (30L), California

- Rick J, Coyote Military Ruck, Phoenix, Arizona

- Rikki, K9 Sport Sack, Georgia @rikkidiculous

- Suria, Hydration Pack by Mubasel Gear, Arizona

- Keith, Osprey Kamber 32L, New Hampshire

- Eli, Hyperlite Mountain Gear Windrider 55L, Mohican State Park, Ohio

- Kyle, Gossamer Gear Mariposa 60L, Alabama

- Tarik, 60 L BASE Jumping Stash Bag, Nevada

- Eric, Adventurer 70L pack, Alabama

- Nick, SWD Movement 35L, Central California

- Susan, Gossamer Gear Mariposa 60 Liter, Kentucky

- David, Mardingtop 50L Internal Frame, New Mexico

- Kathryn, ULA Ohm 2, small torso, Virginia

- Nick, Hyperlite Mountain Gear Daybreak 17, Colorado

- Warren, Durston Kakwa 55L, Texas

- Mark S, Waymark 18L Ultralight, New Mexico

- Ron, Teton Sport Oasis 22L, Washington

- Kim, North Face Litus Women's 22L daypack, Mesa, Phoenix

- Oliver, Mystery Ranch 3-DAP, New York

- Ralph M, EDC pack, San Diego Zoo

- Suu, Osprey Osprey Daylight, Massachusetts

- Jeremiah, MVP Disc Sports Shuttle Backpack, Pennsylvania

- Chuck, 30L Every Day Carry with about a 20lbs load, Arizona

- Jeffery, Yak Pak, 11x17x8, Nevada

- Tim, Orange Mud Hydration Pack, Arizona

- Jack, Kelty Redwing 65 L, Massachusetts

- Jordan, Dandee Standard Pack 27L, Illinois

- Joe, GoRuck 21L, Ohio

- Lonnie, Osprey Raptor and Osprey Raven, Kentucky

- Kristy, Zomake 40L, Pennsylvania

- Rick, Nashville Cutaway 30L Ultralight Backpack 16 inch, New York

- Ross, Military Level III Assault Pack, Oregon

- Nicky, REI traverse 60L, Massachusetts

- Daniel, Gossamer Gear Fast Kumo, Georgia - click to read original Facebook post

- Gavin, Teti work backpack, Maryland

- Anthony, Custom Backpack w/ components from Moose Track, Gossamer Gear, and Six Moon Designs, Iowa

- Steve, Granite Gear Virga 3, Southern California

- Travis, Zpacks Arc Blast & KUIU Stalker 500 Pro, Indiana

- Michael, Diamond Candy 40 Liter, Florida

- Mike, Hyperlite Southwest 40L, New Hampshire

- Raymon, Zpacks Nero 38L pack, Alabama

- Kevin, Osprey Talon 11, Connecticut

- Javi, 25L Goruck Rucker 4.0, Texas

- Keith, Osprey Kamber 32, New Hampshire

- Wade, Camelbak KUDU 12 w/back protector, Louisiana

- Sean, 5.11 LV Covert Carry 45L, Florida

- Joe M, Hill People Gear TARAHUMARA PACK, New Hampshire @joemitch25

- Rodney, Travel Daypack, Southern California @rburnes

- David G, 22L Backpack, Southern California

- Jared, REI Trail 25, Cave Creek, Arizona

- Andy, Osprey Daylite, Phoenix, Arizona

- John B, REI Co-op Traverse 32L with a 3-liter hydration bladder, Cave Creek, Arizona

- Shane, WANDRD 41L PRVKE, Mesa, Arizona

- Doug, 28L Waymark Mile Daypack, California, YouTube Channel Backcountry Pilgrim

- Kris, Gossamer Gear Kumo 36, New Hampshire

- Tommy R., 30L Supreme Backpack, Maryland

- Jonathan C., 54L ULA equipment model CDT, Berlin, CT

- Paul A., North Face Borealis Outdoor Backpack 28L, Phoenix, AZ @hiking_padawan

- Jay W., Rockagator and Eberlestock backpacks, New York

- Patrick S., Deuter Speed Lite 30L & REI Flash 22 (22L) Ultralight, New Hampshire

- Ben V., 30L Daypack, ModGear hydration pack, 16" x 9" x 3" main compartment, West Brook, CT

- Melissa, 30L Daypack, The Cherry Mountain Trail a.k.a. 1.8 of Vertical Hell, New Hampshire, @adventureswithflokicat

- John W, Mountainsmith Zerk 30 Pack, Phoenix, AZ @jvasholz83

- Dex W, 15 year old day pack,
Estes Park, Colorado

- Mark S, Waymark 18L Ultralight,
New Mexico