zvd 3l portable hydration bladder, portable water hydration bladder self locking valve bag for sports hiking camping climbing hiking blue black

product structure integrally designed portable hydration bladder, it has high performance waterproof design. there is a seal in the lid, which is absolutely resistant to water leakage, even if it is pressed with force. the invariable type does not age. high quality pvc fresh water hose, length 100cm