Sea to Summit Big River Dry Bags will keep all of your gear in one place and safe from the elements. S2S offers bags ranging from 3 liters to 65 liters to accomodate how ever much gear you need to secure. Fully taped seams and a Hypalon roll-top closure provide relaible waterproof performance 420 denier nylon coated with a tough thermoplastic urethane making it lightweight/durable Oval base resists rolling and stays where you put it Durable attachement points secure sack to a pack or kayak Color choice can not be guarenteed Not intended for prolonged submersion Imported Materials:   Thermoplastic Urethane and nylon laminate )