Ultimate Arms Gear Tactical Marpat Woodland Digital Camo Camouflage Hydration Pack Backpack Carrier With 2.5 Liter / 84 oz TACTICAL HYDRATION BACKPACK+ 2.5 LITER WATER BLADDER WITH HOSING NO ON/OFF VALVES-JUST BITE ON THE VALVE-PERFECT FOR HANDS-FREE OPERATION BLADDER IS COMPLETE WITH HOSING AND HANDS FREE BITE-VALVE ADDITIONAL POCKET FOR STORAGE ADJUSTABLE SHOULDER STRAPS