Thick, well stiched, and all around good construction make this inexspensive dry bag a great buy. When folded properly this bag keeps the items contained completely dry, if it is rolled and not folded correctly it will leak...so fold fold fold and then snap closed for a completely dry experience. **UPDATE** WOW, just a perfict dry bag. I went on a wild river float, I used the straps to attach the bag to my tube. First my tube was easy to lug around as the attached dry bag mad a grat carry handle, then how it was attached made a great head and back rest. The ride got crazy, the tube, bag, and me flipped all over the place. Under the water the bag went, over and over....then it poured down cold cold rain. The water was warmer than the air and into the river we all went. The dry bag was now my tube grab handle as I went down river completely submerged. What a super awesome rocking dry bag! My towel, change of clothes, keys and phone were completely dry...not one drop! Why? Its a great bag, and I folded it correctly to start with! Fold, don't roll....FOLD, FOLD, FOLD,FOLD & SNAP!