This waterproof wet bag is cute and seems to be of good quality -- I didn't try holding it under water for very long yet (I suspect that water would eventually get in via the zipper area if submerged, in which case this bag is likely more along the lines of "very water resistant" than fully waterproof, but I haven't proven that theory yet) but it held up well to a splashes of water and a quick dunk in a sink -- no water got in. Likewise, you can fill it with water, and no water easily comes out -- as the majority of the bag is made out of a waterproof plastic material. It folds up compactly, the colors are relatively vibrant, and although the plastic-canvas material the bag is made out of is pretty thin, it also feels quite durable -- like a good, strong reusable shopping bag, basically. I should've paid more attention to the exact size specifications of this product -- some of the product pictures make it look a bit bigger than it is ... I have some similar looking wet/dry bags that my kids use for swim practice, that they're able to fit a swimsuit and a thin kid-sized towel into, that they zip up inside the wet bag, and then put the wet bag into their backpacks, with the wet bag keeping the wet swimsuit and towel from getting everything else in their backpack wet... I mistakenly thought this was going to have around the same capacity of these other wet bags we have, but it's actually quite a bit smaller and narrower -- it can fit a swimsuit and a couple of other small items if needed, but it won't fit a towel (well, anything much bigger than a hand towel, anyway). It's great for small items like a phone, some sun glasses, etc. Just don't expect to pack a towel or an entire outfit in here haha.