I went swimming in a local lake today and it was my first experience with a “tow float” that can also store stuff. Pretty cool. I put my phone, shoes, shirt, and the whole small backpack that I carried the float thingy in, in the float, and then swam for 30m with it. Everything stayed dry! http://www.amazon.com/dp/B07SZ4KV9H?tag=d73fh-20