The Hydrabond 3L tactical hydration pack can be carried as a backpack or attached over gear. Backpack straps can be stowed away when securing to a pack Constructed of heavy 1000 denier nylon Includes a 3 Liter reservoir with insulated tube and bite valve Closed cell foam padding helps insulate contents Hook and loop patch for ID Carry handle on the front of 3L hydration backpack Vented mesh back panel Hydration bag available in black and coyote tan