1. Different capacity for your choice.super lightweight dry sack - Crafted with ultimate lightweight & waterproof Oxford cloth, Never deal with heavy or stiff dry bags again! 2. Rugged roll-top closure - Seals quickly and easily with 3 roll closure, which is twice as safe as any closure seal available on market. 3. A snap hook on the quick-release buckle provides a handy attachment point. 4. Super easy to seal - Fold the top at least three times, then snap the buckle shut. Welcome to visit our official website : https://www.outdoorsportsbag.com