This large capacity daypack with hydration insulation layer and helmet buckle weights only 1.4 pounds (620g) which make it a good companion for your fantastic outdoor experience. With two extra pockets on the wide waist straps you can put your phone or other valuables in and take them out freely. 3 zipper front pockets and 2 side compartments are spacious enough to store your necessities. Nice bag for running, cycling, hiking, fishing, etc. Features: Made from tear resistant and waterproof nylon fabric for extreme light weight and durability. Multi-compartments provide separate spaces for computer, files, wallet, clothes, power bank, cellphones, clothes, etc. Thicken pearl cotton padded back and waist mesh strap for maximum breathability and comfort. Outer buckle and side elastic bags for fixing your helmet, easy to take it to anywhere. Built-in hanging strap for your water bladder(not included). Fully adjustable shoulder, chest and waist straps for a custom fit. Zippered waist pockets keep some small necessities handy. Reflective strips enhances visibility and safety. Removable survival whistle on the chest bag can be used in urgent needs. Perfect choice for running, cycling, mountaineering, hiking, fishing, cross-country and other outdoor activities. Note: only bag included, water bladder and other items are for demo. Specifications: Material: Nylon Color: Green / Black / Dark blue / Orange / Gray / Light blue ( optional ) Bag Size: 50 * 24 * 10 cm / 19.7 * 9.4 * 3.9 in Bag Weight: 620 g / 1.4 lb Package List: 1 * Backpack