*Description: *Best replacement for your hydration bladder *Great accessory for endurance activity like hiking *Convenient hand-free bite valve design *Well fits Camelbak hydration system and military combat vest *Holds liquid with -40℃ to 90℃ temperature *Material: TPU (0.25 mm in thickness) *Tube length: 100 cm *Capacity: 2L *Note: *Please make sure that the black seal ring is covered completely in the hole or there might be water leakage. (updated date: 2012-4-26) *Package Included: 1 x 2L Hiking Hydration System Bag Water Bladder