FEATURE mazing Capacityhe upgraded tactical shoulder backpack is strengthened to 50L. Size approx: 13*11.8*20Inches(L*W*H). The unique hydration insulation layer on the back can keep liquid cool for up to 6 hours.The side pockets are added for fishing gear, camping kits, survival kits, and so on. ilitary MOLLE System Molle backpack webbing system on front and sides, designed to be used in combination with other equipment, you can attach extra pouches or gears such as kettle pouch, walkie-talkie pouch, first-aid pouch, torch pouch, sundries pouch, and also the sleeping bag and mat. The shoulder straps with two D-rings to hang some things, and the straps at the bottom can be used to hold a tent or other outdoor gear. omfortable and Durable In Daily Lifergonomic backpack help reduce back and neck pain for an outdoor trip. Widen cushioned back makes it comfortable to wear. Armed with a chest belt and a waist belt up to keep the large backpack secure. You can detach both belts when not in use. ersatile with Multi-Compartmenthe military-style shoulder backpack is made of 1000d wear-resistant polyester, high intensity, and durable; It has multi-compartment and zippered closure pockets to meet your demands daily life. Features spacious main compartment, interior zip pocket, and mesh pocket. Y-Strap on the top allows you to hold more items, like a sleeping pad or sweatshirt. our satisfied outdoor backpackhe backpack is spacious enough for you to carry enough clothes for a couple of weeks or a 3-day trip. You can also use it as a range bag, fishing backpack, tackle box bag and so on. If for any reason you are not 100% satisfied with Hydration Pack, please contact us freely and we will try our best to solve it well for you. DETAILS Hydration insulation layer on the back Made of high-quality aluminum foil. It can keep the bladder cool for up to 4 hours. Old school Y strap Y shape buckle distracts pressure. No hassle to release. Quick access for the big main compartment. You can also hold your towels for quick access. Molle system Military front MOLLE webbing straps system allows attaching more gear like G4Free pouches or aluminum alloy carabiner. Bottom webbing The buckle strap at the bottom is helpful to carry a pad and desk. Quickly hold and release when camping. Very multifunctional and practical. Rear Compartment The padded back can fit your electronic products, reducing most of the shock when running or trekking to some extent.