1, WR Treated, 330D double ripstop nylon with 1500mm polyurethane coating 2, super-duty EVA-padded hip belt, EVA-padded shoulder straps, and internal aluminum frame allow you to carry heavy loads longer and more easily 3, Jersey laminated EVA-padded back panel 4, YKK heavy gauge zippers 5, Duraflex buckles 6, Hypalon zipper garages 7, Volume 48 liter/2929 cubic inches, 8, weight 1.79Grams 9, Dimensions (cm): 25.4depth x 30.5 width x 55.9 height 10, stitching: heavy-duty, industrial cross-stitching in key areas, 11, Aluminum internal frame supports and distributes heavy loads