Ultimate Arms Gear Tactical OD Olive Drab Green Hydration Pack Backpack Carrier With 2.5 Liter / 84 oz. Water Drinking Bladder Reservoir Capacity System Includes Hosing And Hands Free Bite Valve, Heavy Duty D-Rings, Storage Pocket, Adjustable Shoulder Strap & Emergency Carry Handle - Camping Hiking Outdoor Hunting Airsoft Bicycle Running Sports Military Army Patrol TACTICAL HYDRATION BACKPACK+ 2.5 LITER WATER BLADDER WITH HOSING BLADDER IS COMPLETE WITH HOSING AND HANDS FREE BITE-VALVE NO ON/OFF VALVES-JUST BITE ON THE VALVE-PERFECT FOR HANDS-FREE OPERATION ADDITIONAL POCKET FOR STORAGE ADJUSTABLE SHOULDER STRAPS