Features: 1. The threaded end with seal hose improves leak-proof ability. 2. Made of tough materials and rigorous process, 50KG pressure does not leak. 3. Made of food-grade transparent EVA, it has good abrasion resistance and pressure resistance. 4. High temperature resistance and good oxidation resistance. 5. Bite on the mouth pieces to absorb water and after release, it will be self-operated and closed. Item Type: Outdoor Sports Accessories Material: EVA Color: Blue Capacity: 2L Size: Approx. 41 * 17cm / 16.1 * 6.7inch Pipe Length: Approx100cm / 39.4inch Package list:1 * Water Bag