Product Description: Material: PVC Size: 41*17cm, capacity 2L Color: blue Scope of delivery: 1* foldable water bladder Large opening for easy cleaning and filling: The large opening makes it easy to pour water. It is also quite wide for a hand or bottle brush to easily access the internal hydration bladder. Leak-proof: Improved soft nozzle with easy-access on-off valve prevents leakage. Conveniently control water flow by biting, if you don't bite the water won't leak. Stay perfectly hydrated: Insulated hose resists temperature changes in hot and cold weather. 41*17cm hydration bladder is compatible with most hydration packs. The tube provides a flow for easy drinking, keeping you hydrated during cycling, hiking or running Occasions: Our water bladder is perfect for camping, hiking, cycling, running, cycling, climbing, backpacking, hunting & skiing, all other outdoor sports you like. Easy to drink: The soft nozzle of the hydration bag has an easy-to-use on-off valve to prevent leakage. The water flow is conveniently controlled by the bite, and the water does not leak when not bitten.