Outdoor Research Lateral Dry Bag 420D laminated and coated nylon fabric is waterproof and durable with radio frequency welded seams for highly durable waterproof seals See-thru urethane window provides greater visibility of bag contents. Two durable buckles with compression straps secure waterproof roll top at each end, and two vertical compression straps with daisy chain attachments Dimentions: 15" x 15 1/2"/38cm x 39cm Avg weight: 7.9oz/223g