Features 1Made of food grade TPU, which has strong hydrolysis resistance, safe, antibacterial and odorless 2Large water inlet is good for easy water filling and cleaning 3The 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 4The mouthpiece is covered by cap, which can keep it clean all the time 5Folding and lightweight, suitable for running, cycling, camping, hiking, climbing and other outdoor sports Specification 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: TPU Color: Blue Options: 250ml Bag, 500ml Bag, Piple Temperature Resistance: 0-40 Bag Size: approx. 250ml-23 x 6cm / 9.1 x 2.4inch, 500ml-25 x 8cm / 9.8-3.1in Pipe Length: Approx. 25cm / 9.8inch Weight: approx. 29-51g Package List: 1 x Water Bladder / Pipe Note: 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.