Got this for my SUP and so far it has worked out really well. I put some "essentials" (rope, patch kits, etc.) in here so every trip out I have what I need. I have been able to position this at different points on my SUP depending upon how many folks are on it (I have a VERY large SUP) without issue. Stays in place via suction or the Drings built into the SUP.
We put this on my daughters, SUP and she absolutely loves it. Easy to put on and gets her a place to put her phone, sun, lotion, and other stuff and not worry about it going anywhere. A really nice inexpensive addition to any SUP.
I accidentally left this bag attached to my kayak on a 2-hour drive to and back from the lake while the kayak was on the roof of my car, and am happy to say that it is still intact and looks like-new. The straps and clamps were able to withstand the winds on the long drive, so I'll give it a one up on durability for that. I like how much more easy it is to access my items with this bag while I am fishing on my kayak. With this bag, I just have to turn around and unzip it to access my items, vs having to pull out my dry sack from the bungees every time and unroll/unclip it, then place it back under the bungees of my hatch. Saves me a lot of time and hassle throughout my trip on the water. I was surprised at how much this bag can hold. It held several water bottles, snacks, and my sunscreen, with some room left to spare. The quality of the clips feel okay, but I can easily replace those if they give out. Of course, the bag isn't waterproof, so I wouldn't expect to carry anything that you don't want getting wet in there. Overall I like this bag and find it a nice addition to my kayak.