The hiking backpack is made of 420D lattice nylon material and 420D plain nylon material, with anti-scratch function. | Chest strap can share shoulder weight, adjust up or down and prevent the shoulder strap moving from left and right, which keeps stability of the backpack and saves labor. | The shoulder strap is made of high-quality nylon, reinforced seams, it will not easily broken even if heavy luggage is put in. A maximum load: 20kg. |