VentaPakLightweight Ventilation Backpack Spacer - Frame for Hiking, Commuting & Biking Backpacks - Large Mesh Ventilation, Rucksack Frames for Improved Airflow Reduced Sweat

I was so skeptical about this product, but figured I would try it for my Fishpond Thunderhead backpack. My backpack has zero padding and hits just on my lower back. I carry about 25-30lbs of camera gear and my backpack is quite uncomfortable. Holy moly! This product is amazing! It keeps the backpack off my back annd offers great support. The pack know longer hits my back at all. Honestly , keeping my back cooler is just an added bonus. This isn’t a gimmick, it really works!

The media could not be loaded. I never thought a simple backpack attachment could transform my biking experience, but this product proved me wrong. It eliminates the annoying sweaty back feeling after a ride and makes a heavy backpack feel much lighter, thanks to the springy mesh surface that rests against your back (think Herman Miller chair mesh). As someone who relies on their bike to get around the city—whether commuting to work or heading to an event—this has been a game-changer. I still get a bit of sweat buildup from my backpack straps, but my back stays nice and dry. It's amazing how something so simple can make such a big difference. I'm honestly surprised this isn't standard in all backpacks already. If you're looking for a way to make your city commute more comfortable and sweat-free, this product is a must-have. I had a friend take a quick video to show how it rests on my back while riding.

This worked but the bottom parts dug into me and was uncomfortable so I bought a similar product o preferred instead.

I have been looking for this product for ages - everywhere in the whole entire world but couldn't find it - until when I by accident found it here on Amazon (the US site)! That was the BEST decision of my life!VentaPak is just so unique and functional that it is worth every single dollar you are paying for this product! Remember that you have only one back and you don't want to destroy your back with bad posture cause fixing your back when it is already broken is super difficult to cure, that it's actually better to prevent it from happening from the first place.And who wants to walk around with sweaty sticky back on the same time? Noone!Does this product live up to the hype? Hell yeah, it definitely does! On the contrary, I'm actually positively shocked over the result. Even had to order it from other side of the world with customs and import etc... but still worth it. Wish that this product is coming to Europe. Maybe eventually?The whole entire frame is that sturdy and stable that it could even handle my HUUGE back with full of loads without any problems. Not even a single bend or any breakage at all. This thing is made to sustain huge amount of load, I'm sure I can use this for years without a hiccup.Is it comfortable to use? Oh yes! It feels so much better to use this one than without, that much I can tell you! The shape and forms were perfect and it fits all the rucksacks I have tried so far.I paired with all from street rucksacks to hiking rucksacks to hydration packs, everything fits due to the simplicity of the attachment device.Is it lightweight? Very much!Any cons so far? Well, unless you need to fold your rucksacks to save space, then I don't see any reasons why you shouldn't buy this ventilation and good-posture-for-your-back product!I just wish I knew about this product earlier or it was produced earlier cause so many years I have been suffering with both bad back posture and sweaty backs that much that I sometimes hated to wear rucksacks altogether but this VentPak product is a GAME CHANGER! That's for sure!And another very positive thing about this product is that the seller and producer to this one was very keen on helping me with answering questions and giving me advice, assisting etc. Seems like they really care about this product and how to develop it to become better and better. That is something I very rarely see in other companies. So thumbs up for this great service!In conclusion, TL;DR: A must buy product and totally recommended! That good product that I actually want to buy one more extra for my fiancee as well.

I live with humidity and even though my backpack has some mesh on the back, I still get super sweaty. I tried to find a solution but initially this thing felt overpriced at $50. Well, when it went on sale for $35, I had to pull the trigger.I will say that it's built well enough. I don't expect it to last a decade, but they needed to make it light weight, so I can't really fault it there. Unfortunately, though, it throws off the balance significantly. You can adjust the curvature with some little straps, but whether I made it more shallow or deep it was always the same thing. By trying to have more weight on my lower back, it ended up pulling my shoulders back. If my backpack was empty, it wouldn't matter, but since I have to carry quite a few things, it ends up feeling like it's constantly pulling me backwards. Maybe it'd be different on a bike, but for me trying to use it walking, it just doesn't work. I don't want to try to jerryrig something, so I'm just going to have to return it and try to find a better solution.