Geigerrig Rig 500 Ballistic Hydration System with 70oz Hydration Engine (Bladder) and 3-digit Combination Padlock - Bundle REMOVABLE WAIST STRAP: Don't like having a waist belt being too tight or hanging free? Just remove the waist belt and place it in one of your pack's storage pockets. Putting the straps back on is easier than tightening a pair of Velcro shoes SHOULDER STRAP: Ergonomic Fit, Terraced Overlay for Adjustable Tube Configuration and Power Bulb Configuration, Industrial Load Disbursement cut and padding FEATURES: Plug & Play Reservoir Tube Connector, PVC Reinforced Compression Straps, Reflective Tabs/Zipper Pulls, Internal Storage Compartments/Organizer, Eco Rig Back Pads, Air Drive Ventilation, Heavy Duty Nylon Pack Handle and Vertical attachment hoops, I-Pod Ready Compartment w/ Waterproof drink tube and bite valve Garage, Heavy Duty Size 8 Coil Zippers 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