UTOBEST water bladder is made of high-quality PEVA material. BPA free odorless SGS and FDA approved they can be used for any outdoor activity such as running camping hiking and backpacking. Offering 4 capacities to choose from: 1L 1.5L 2L and 3L which are of high quality and durability. Bite valve for fast and comfortable water delivery removable and replaceable tube and bite valve clip closure at opening soft mouthpiece with easy-to-turn shut-off valve to prevent leaks and a cap to prevent soiling. Upgraded sliding seal opening for easy use. Carrying handle for easy maneuvering or use with a variety of hydration backpacks. Item Name: UTOBEST Hydration Reservoir Item Number: UTR201 Material: PEVA Capacity: 1L/1.5L/2L/3L Tube Length: 1.04m/40.9 inches Package Includes: 1 * Water Bladder