danajmwrote a review of SealLine Storm Sack Dry Bag on July 31, 2017
Familiarity: I've used it once or twice and have initial impressions
I bought this just in time for a tubing trip, during which I attached it to my tube and it hung off the side, in the water, for 3 hours. I used the 10L bag which held a light-weight towel, change of clothes, car keys, some snacks and 2 full cans with room to spare. Everything stayed completely dry.