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. * Roll top waterproof closure with durable buckle to secure roll top * Dimentions: 16 5/8" x 8"/42 cm x 20cm Volume: 915 cu in * Avg weight: 6oz/170g