Features: 3.0L HYDRATION WATER BLADDER INCLUDED: No more plastic bottles to take up space. Upgraded Quick Release Bladder Bite Valve, just gently biting the valve opens up the flow of water. HIGH-QUALITY MATERIAL: tough and water-resistant high-density 600D polyester fabric, construction rope, high-quality buckle. 2 FRONT POCKETS and 1 MAIN Pocket: Use the front pockets to carry your wallet, keys, phone, towel, small tools, or other items; the main pocket can organize your other large stuff well. MULTIPURPOSE: Perfect for hiking, running, cycling, walking, or taking with you for a day. LARGE CAPACITY: The whole pack size: L 8.26 * H 19.68 * W 4.72 IN, Volume:15L; Bladder 3L. Enough space to hold your necessities for traveling. NOTEï¼?If you have any issues with our product, please contact us immediately to get help. Details: Need To Have Enough Water On Your Outdoor Sports? Must Make Sure You Have a Leak-Free and durable Backpack When going out for outdoor sports, you need to make sure you have enough water for supplement and a Hydration pack that does not leak, meanwhile has enough volume to take your belonging safely along with you . G4Free Hydration Pack Gives you Guaranteed Enough Hydration for your whole day out Adjustable shoulder/chest/waist straps , The chest straps prevents bounce from exercising and biking Extendable bite valve makes it easy to reach Easily cleaned by using water to rinse out the bladder Roomy Storage Pockets to safely carry your belongings along with you specification New hydration backpack with 3.0L water bladder included. Features 2 front pockets, main pocket with water bladder compartment. Made from tough 600D polyester fabric. Additional there is a drawstring on the front bag which you can tight something up to expand more room, like a towel or something else. Bladder holds 3.0L and features a Big Mouth opening and a matching covered sleeve for the drinking tube. 100% Satisfaction Guarantee: If for any reason you are not 100% satisfied with this pack, please contact us as soon as possible ,and we will immediately respond and give solutions to you .