Easy to use, the large opening can be quickly filled, tightly closed, leak-proof and sealed, the handle is designed to be easy to carry and put in the bag, and it can be firmly grasped during filling, dumping and cleaning, and the suction pipe flow is stable and does not block, The bite valve will automatically seal after each drink to prevent leakage. The design of the external volume scale allows you to track the water intake and remaining water in time. It is made of wear-resistant BAP-free material with excellent Durability and flexibility; the dust cover can protect the silicone bite from collecting dust. An adventurous, sports-loving, and energetic you must need such a right-hand man. It allows you to replenish moisture anytime and anywhere during exercise, and it can also be placed in a backpack to free your hands. Allows you to ensure your own safety in the process of challenging yourself.