Burton Treble Yell 21L Backpack - 1282cu in Blue-ray Noveau Neon, One Size Claimed Weight: 1 lb 7 oz Volume: 21 L Dimensions: 18.5 x 12 x 7 in Pockets: 2 side mesh water bottle, 1 back, 1 top Material: [camo] 300D spun-polyester cotton blend, [eclipse checkerboard] air-textured polyester CD blend, [pewter heather] 300D two-toned heathered polyester, [tidal bore] 500D asymmetrical two-tone ripstop, [cobalt, crimson, spicy mustard] 600D polyester oxford weave, [all other colors] 600D polyester, 450D polyester