Our 3L hydration bladder is the perfect solution for staying hydrated on the go. Designed as a lightweight water backpack for hiking, biking, climbing, and more, it allows you to drink effortlessly without stopping. The convenient tube stays within easy reach, so you can hydrate quickly and keep moving. Ideal for outdoor adventures, this hydration backpack ensures hands-free convenience, letting you grab a sip and go without breaking your stride. Stay refreshed with easy access to water wherever your journey takes you. 3L Hydration Bladder: Built-in with a water bladder, easy to add water; just open the cap of water bladder. BPA-Free, taste-free, and odorless. Waterproof Durable Materials: Constructed by waterproof 600D high-density Nylon material, tear-resistant, abrasion- resistant and durable. Switch ON / OFF Bite Valve: Our camelbak bladder have large filling port with secure seal. Bite valve design, convenient for switch on/off the flow of water. Equipped with a tube with a bite valve to drink, so you don't need to stop and hold it to drink. Humanized Design: Slender and portable design with middle handle strap, adjustable webbing chest strap and shoulder straps, partaking the load when carrying heavy loads. Adjustable Shoulder Strap/Chest Belt: With hand carry strap and adjustable shoulder strap, so you can adjust it to the most comfortable position, suitable for heavy carrying and longtime exercise, walking.