Geigerrig Tactical Rigger Hydration Pack with 70oz Hydration Engine (Bladder) and 3-digit Combination Lock - Bundle SMART DESIGN: trim and compact Water System with some additional space for a few small items. It has molle attachment points at the top and the bottom of the back for adding other pockets or attaching it to other gear, armor, load bearing vest, etc. It also has the It also ahs 360 degrees of D-Rings to assist in attaching the rigger to other gear, armor, load bearing vest, etc. It can hold up to 100oz bladder. Fabric: 500D Cordura ZIPPERS: Large top flap for easy access to the pressurized hydration reservoir. Long side zipper for easy access to other contents stuffed in the bottom of the pack PACK STRAPS: Stowable pack straps to create RIGGER pod for attachment to other gear, armor, load bearing vest, etc. 70 Oz (2 Liter) Geigerrig Bladder of included: drinking tube with quick-release valves and pressure tube for easy refill and bladder removal. Slide top for easy refill, cleaning and drying 3-DIGIT COMBINATION LOCK: sized 2.1 x 1.1 x 0.4 inches, included in the bundle helps to keep your belongings secure