12 Survivors E.O.D. Pack has a main, large compartment, which contains four mesh pockets for easily identifying and organizing your contents. The webbing on the front and side allow for easy attachment of accessories, and the two straps on the bottom are for strapping in a sleeping bag or bed roll, which will free up space in the pack for your other contents. With a pocket for a hydration system, ambidextrous tubing holes, and thick padding on the shoulder straps, the 12 Survivors E.O.D. Pack will succeed in any situation you might find yourself in. Features Zipper Lumbar Pad Secret pockets under back padding Extra padded shoulder straps Velcro strip label Form Fitting Hip Belt Top pocket is velvet lined Elastic bands for maximum loading capabilities Fabric: High density 210T lining/PU3 (EN71-3 standard) Zippers: SBS Brand Waterproof Rating (fabric): 6600*600 Polyester Oxford Waterproof Rating (zippers): 100% Nylon SPS waterproof Dimensions: 21x15x6 in. Weight: 4.7 lbs.