Nice bag to have all my things dry and very comfortable

I want to use this on my small boat and for hiking it looks like it holds air and is water tight just make sure you roll it correctly , I can stand on it full of air and it supports my body Weight and I'm 230

Was looking for a dry bag to keep my stuff dry during rainy bike commutes, but also normal backpack size so I can use it daily when I commute by bike. A lot of the ones I was looking at just seemed too big, even at the smallest size. This one is about the same size as my Timbuk 2 rollup bag.

It also got a good test during a sudden heavy rainfall on my way home (New England weather is too unpredictable). Glad to say that my stuff was kept very dry.

I did end up sending this bag back because the 30 L was a bit too big for me and the 20 L was out of stock. I ended up getting a different idry bag version, the roll top. Basically I wish I could add a few features from that bag to this one or meld them into the perfect bag! Pros for this bag is it is wider, which I prefer to the traditional circular dry back pack everyone has. I have it next to a dry tote bag I've been using that makes it much easier to find stuff, but I want the back pack straps. My tote bag is difficult when carrying lots of gear and trying to walk my dogs, plus i have neck and back pain. I also like the clear pouch on the front and the way the bag rolls at top and cinches down on sides. It has a couple of attachment points on the straps and the smaller 2L bag is convenient to attach for small item like key or phone. There is a decent sized zippered pouch inside which is also clear. Love the clear to make it easier to find. I ordered yellow, keep in mind if you order black or another dark color it will be harder to find what you are looking for in a dark hole. This bag also had both a chest strap and a waist strap. I do wish this one had at least one pouch for a water bottle and a couple more attachment points somewhere other than straps. Keep in mind the clear pouch on front is spacious but not completely waterproof, only resistant bc it would need one of those very heavy duty zippers (like on yeti or rtic coolers) to be waterproof.

Compared to the roll top version:
This version is 25L, had the water bottle holder I wanted, only a chest strap and no waist (which I prefer less straps to trip over on boat or kayak, not hiking with this). It also has a very interesting padded organizer inside that is cool. Will hold a small tablet or my kindle. The roll top is more traditionally round and not as wide (I would prefer the latter). Instead of a clear sealed pouch on front, it has open mesh and ties so only things that can get wet would go there. Useful to wet item like flip flops, or even a towel. I see benefits to both of these pouches, the mesh makes it easy to grab something quickly. I also like the extra attachment points on the roll top and fact it had bottle sleeves. However, the sleeves are so small and tight I can hardly fit any of my reusable bottles in there. Works great with a 16 oz plastic water bottle, but that is what I am trying to avoid using! I much prefer the 2L pouch with this version as it is translucent and can see in the bag.

Final verdict:
Great bags. I wish I could take the extra attachments, translucent 2L bag, and have larger water bottle sleeves on this dry bag and get it in 20L size. Then it would be great! idry bag does have a 3rd backpack style that for the most part is more basic, and less expensive, than these two. BUT, it actually has a more useful water bottle holder that appears to expand better and cinches tight. That holder should be on all the bags and it would improve the products. I can't speak to quality yet, appears sturdy and if I get a small hole or seam issue later or after rough use, that is what the aquaseal/tough tape is for. Great to repair dry bags and coolers, don't throw them out!

Bought this backpack to use going camping and when I take road trips on motorcycle. It keeps everything dry inside.