I used this in Central America to keep important stuff dry as I swam across channels pretty islands of the coast of Belize. I was a little doubtful at first since it is not as sturdy feeling as some Baja bags out there, but it worked like a charm. Really easy to seal too. I am not sure how it would hold up to a bunch of abrasion yet but for keeping stuff dry it works. For more technical, and rough, activities something more durable might be better. But for stuffing in a pack, or carrying by itself it is perfect.