Geigerrig Rig 1200 Hydration Pack 100 Oz Black 100 oz. quick release valves for drinking tube and pressurization tube for easy refill and bladder removal iPod ready compartment with waterproof zipper garage Terraced overlay for adjustable tube configuration and power bulb configuration Intergrated slider chest strap Eco rig back pads and air drive ventilation Heavy-duty nylon pack handle