Features:Made of food grade TPU, which has strong hydrolysis resistance, safe, antibacterial and odorless. Large water inlet is good for easy water filling and cleaning.The mouthpiece is odorless, high-flow and designed with opening and locking device to prevent leaking in the locking state and to drink water easily in the state of opening. The mouthpiece is covered by cap, which can keep it clean all the time.Folding and lightweight, suitable for running, cycling, camping, hiking, climbing and other outdoor sports.Specification:Material: TPUColor: BlueOptions: 250ml Bag, 500ml Bag, StrawTemperature Resistance: 0-40℃Bag Size: approx. 250ml-23 x 6cm / 9.1 x 2.4inch, 500ml-25 x 8cm / 9.8-3.1inPipe Length: Approx. 25cm / 9.8inchWeight: approx. 29-51gPackage List:1 x Water Bladder / PipeNote:1. Don't store the fruit juice, milk and other beverages.2. Do not store the water more than 50 degrees, so as not to scald yourself.