🐕 2 in 1 Design: Bottle + water bowl integrated design. The fold cap will becomes a water bowl after unfolding, and you don't need any external bowl to give your hairy buddy water to drink anymore. Fold back after drinking. That is so easy! 🐕 Upgraded No Water Leakage: A water-locking mechanism in the bottle cap to keep the water remain in the bottle clean, and the sealed silicone gasket inside the cap ensures that there is no water leakage. You can put it in the backpack, and don't have to worry about getting your bag wet. A built-in water pipe in the bottle to ensure the water can be squeezed without wasting water, even if there is only a little quantity of water in the bottle. 🐕 Large Capacity : 2 sizes to choose from, M: 500ml/16.9oz, L: 650ml/ 22oz. Ensure to provide your pet with safe, fresh and healthy water at any time, especially during long-distance walking, hiking, traveling and other open-air activities. Highly fitting for large, medium and small dogs.