Features:-Made of waterproof fabric processing, strong waterproof effect, abrasion resistance and scratch resistance.-Comfortable shoulders, strong sweat absorbing and refreshing layer, high quality breathable mesh layer.-The side of the product is equipped with a trekking pole rubber strap, which can be hung on the backpack when not in use.-The side is equipped with a bean belt clip for attachment, which is made of black environmentally friendly plastic.-The connection between the shoulder strap and the bag is made of triangular reinforced padded edges and beveled seams that make it stronger.-The back shoulder strap is equipped with protective padding and the edge is sewn through the date manufacturing process to make it stronger.-The back is made of super breathable cotton, super breathability, more comfortable to wear.Specification:Material: waterproof nylonColor: BlackCapacity: 80LWeight: 900Product size: 70cm x 40cm x 20cm (HxLxW)Packing size: 40*35*5cmPacking List:1 * 80L BackpackNotice:1.Please allow 1-3cm error due to manual measurement. Please think carefully before you buy2. the color may be different due to different displays, please understand.