Ultimate Arms Gear Tactical OD Olive Drab Green 2.5 Liter / 84 oz. Replacement Hydration Backpack Water Bladder Reservoir - Includes Hosing And Hands Free Bite Valve Brand New - 2.5 Liter (84 oz.) Capacity - OD Green Color Fits Most Hydration Backpacks-Molle & Tactical Vests Superior Quality - A Favorite With Military, Law Enforcement, Hunters, Hikers And Outdoor Enthusiasts Features A Convenient Carry Handle And An Easy Removable Refill Cap Complete With Hosing And Bite Valve - Perfect For Hands Free Operation