Convenient for hiking,traveling,camping,running,cycling,mountaineering ,school life . Backpack components are approved in
laboratory tests, including fabric, buckles, webbing, foam, zips, etc. Fabrics are tested for resistance to wear, tearing,
color-fastness in UV rays, washing, waterproofing, etc. A final test on the finished product simulates the kind of treatment to
which it will be subjected over several years, to assess the strength of the assembly The backpack is weighted, then placed on a
dummy which reproduces the movement of fast walking through thousands of cycles.Thicken padded shoulder straps Convenient for
hiking,traveling,camping,running,cycling,mountaineering ,school life To ensure materials retain their properties (especially
waterproofing), we recommend you do not machine wash, tumble dry, dry clean, or bleach your backpack. Do not iron. To clean your
backpack by hand, use warm soapy water and a brush if needed. After a few years of use, you should renew the water repellent
properties of the fabric using a waterproofing spray.