Fireclub US Army 3L 3 Liter (100 ounce) Hydration Pack Bladder Water Bag Pouch Hiking Climbing Survival Outdoor Backpack Coyote Tan Tactical Hydration Bladder 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 Storage Pocket. Adjustable Shoulder Strap. Easy Removable Refill Cap. Convenient Carry Handle. Heacy Duty D-Rings For Hosing Placement.