Bladder: 100 oz., quick-release valves for drinking tube and pressurization tube for easy refill and bladder removal, slide top for easy refill, cleaning and drying.Fabric: Heavy Duty Ballistic Ripstop Nylon ensures a long lifetime of your pack, no mater what you put it through.Weight: 2.5 lbs or 1.15 kgZippers: Heavy Duty Size 8 Coil ZippersiPod Ready Compartment - GEIGERRIG placed the iPod pocket at the top of the pack for comfort and easy access to your tunes. The iPod pocket is lined with soft abrasion resistant cloth and sealed with a heavy duty Zipper.Removable Waist Strap If you have no need for a waist strap then remove it and store it in one of the many storage compartments.Shoulder Strap Ergonomic Fit, Terraced Overlay for Adjustable Tube Configuration and Power Bulb Configuration, Industrial Load Dispersement cut and paddingColors: Classic Camo ballistic rip stop nylon fabric.Chest Strap: Integrated slider chest strapAdditional Features: Plug & Play Reservoir Tube Connector, Compression Straps, PVC Reinforced Exterior Side Heavy Mesh Pockets, External Bungy Storage System, Reflective Tabs & Zipper Pulls, Internal Storage Compartments and Organizer, Eco Rig Back Pads, Air Drive Ventilation, Heavy Duty Nylon Pack Handle