Quality waterproof material: Made from quality nylon material, durable, sturdy and breathable. The surface material is water repellent to keep your items dry and clean. Mesh fabric in the back is comfortable and moisture-absorbing to keep you away from stuffy.Multi-compartment and large capacity: 15L large capacity can easily meet your needs. Main compartment can keep some daily necessities, clothes or exercise equipment. Compact deputy compartment and front pocket are fit for the small and light items. The mesh bag folded in the bottom can keep your cycling helmet.Fastening: ZipperRucksack BackpacksUnique ergonomics design: Mesh pad on the back and shoulder straps can distribute the pressure of your shoulder and back to relieve the fatigue. The straps are adjustable to fit your body and make the backpack not easy to drop. Durable YNS lock and mesh bag can keep the water bottle and keys.Wide usage: The hiking daypack is lightweight and portable. Easy to clean and wash. It is suitable outdoor sports and activities like cycling, mountain-climbing, skiing, camping and hiking. Also fit for casual daypack for commuters and weekend getaway, the shopping carrier and school backpack.Package: 1 piece of hiking rucksack. Weight: 470g. Size: 18.9"x11.8"x7.9". Capacity: 15L.