Main compartment measures 9'' x 9'' x 3''. Has three zippered accessory pockets, two sleeve pockets, and one drawstring pocket fitted for a 32oz/1L Nalgene water bottle or a radio. Has three places for modular expansion with other Maxpedition accessories using TacTies. External keyper on shoulder strap for gloves and internal silent keyper for keys. Integral 2'' strap (min 40''/max 60'') with non-slip shoulder pad. Right side carry. lon thread (stronger than ordinary industry standard nylon thread). #AS-100 high grade closed-cell foam padding material for superior shock protection. High tensile strength nylon webbing. #10 high strength zippers and zipper tracks. UTX-Duraflex nylon buckles for low sound closures.