Opening for easy cleaning. The 2L hydration bladder features a wide opening for easy pouring of water and access for hand or bottle brush cleaning. The screw-on cap is easy to operate. For cold water, simply add ice cubes directly. The smooth inner surface promotes health and is easy to clean. Constructed from taste-free, food-grade material. This water reservoir is tested to comply with safety standards and passed a pneumatic pressure test for durability. It features a double sealing side technique. Remain hydrated with this 2L bladder that withstands temperatures from 20 to 50 degrees Celsius. The tube resists temperature changes in hot and cold weather. Measuring 14.2 inches by 6.8 inches, it is compatible with most hydration packs. The tube is 0.4 inches in diameter and 40 inches long for a wholesome flow, ideal for camping, biking, cycling, hiking, or running. The well-sealing water bladder features a high-flow bite-valve. Bite the soft mouthpiece to suck water, with an easily accessible on/off valve and a cover to keep dirt out. The quick-release tube is detachable. When the tube is removed, the connector automatically shuts off to prevent leaks. Store neatly in a fridge or icebox without a tangling hose. Capacity: 2L Colour: Green Material: EVA Package Contents: 1 x Water Bladder Only the above package content, other products are not included.