Comments about Sea to Summit Ultra-Sil Nano Dry Sack:
This is a great little (I bought the 2L) dry sack. Its main use is for toiletries/sundries when I am on a day hike or out backpacking. This sack keeps my items dry with its waterproof sil-nylon material; its roll top closure. Although because of its material my only concern is its durability down the line, but that's what I expect when I buy something that is as ultra-light as this product. All in all I am very pleased with this Sea to Summit product.
Bottom Line Yes, I would recommend this to a friend