FEATURES & SPECS • 21oz / 600ml • 128g / 0.28lb • Safe Material BPA Free 5 UPGRADE DETAILS • Upgrade the buckle design to the side, it is easier to control and keep the water in the collapsible bowl; • Increase the depth of the bowl to further adapt to the dog's drinking habits; • Make the bottle body slender and easy to hold; • The capacity is increased to 21oz; the strap is upgraded, which can bear 44 pounds; • The control of the water outlet switch button is upgraded to move the slider left and right, which is more humanized. SAFE MATERIAL • Food-grade safety material: High-Density Polyethylene. • Safe and non-toxic, hence it can safely be used for pets. • BPA Free, no smell, soft material, and recyclable. • The various parts are detachable and easy to clean. • Capacity Tick Mark. (It is convenient for you to provide your pet with the appropriate amount of water according to his/her drinking needs.) NO WATER LEAKAGE AND NO WASTE • To improve the waterproof function, we added a waterproof lock on the bottle cap. Convenient for you to feed your pet, do not worry about water leakage. It won't get your travel pack wet. • No water waste. The bottle can also be squeezed without wasting water, even if there is only a small amount of water in the water bottle. This is because it has a built-in water pipe.