Usage scenarios: cycling, outdoor mountaineering, running fitness, camping, picnic, travel and vacation etc. 20-35-Liter Hydration Backpack and plenty of pockets to help you stay organized while you are on the move. Elastic cord offers relief and stability, while the zip-closure pockets keep your essentials easily accessible without disturbing the rest of your gear. Reflective detailing keeps you visible in low-light conditions. The padded mesh back panel and shoulder straps provide a comfortable fit. The quick-access front pack is great for those items that you need. Note: This travel backpack of ours does not include water bladder Large capacity design Riding backpack motorcycle has spacious main compartment with padded laptop sleeve, can hold stuffs like work supplies, school college supplies, travel accessories and laptop under 15.6 inch, etc. Comfortable and breathable The shoulder straps are made of mesh breathable material, which can effectively breathe and wick away sweat, making it more convenient to carry. Two-sides elastic pockets Two-sides elastic pockets keep your essentials easily accessible without disturbing the rest of your gear. Waist storage bag The design of the waist storage pocket can protect your mobile phone at any time under your sight, which is safe and easy to view Read more Shoulder Strap Outlet You can release your hands during exercise and replenish water at any time Reflective Warning Strip Reflective strips can reflect the surrounding light at night, thus warning passers-by and drivers. The reflective strip safety equipment increases the safety factor at night. Convenient Helmet Buckle The practical buckle design on the front of the backpack can fix the helmet, which is powerful Read more Package includes : 1 x Cycling Hydration Backpack SPECIFICATION: Material: Waterproof Nylon Capacity: 20-35L Carrying system: air cushion strap FEATURES: 1. The mountaineering backpack is made of waterproof nylon fabric, made of lightweight nylon material, the fabric is light and soft, tear-resistant, wear-resistant, and waterproof. 2. Using waterproof Oxford cloth, rainwater is not easy to penetrate, and water droplets automatically slide off . 3. Comfortable and breathable to carry: The shoulder straps are made of mesh breathable material, which can effectively breathe and wick away sweat, making it more convenient to carry. 4. Water bag can be placed: free hands, fast outdoor drinking system, replenish water at any time, suitable for various outdoor activities. 5. Reflective warning strip: The reflective strip can reflect the surrounding light at night, and play a warning role to passersby and drivers. Reflective strip safety equipment adds safety at night.