This is a large-capacity outdoor sports travel camouflage mountaineering tactics multi-functional backpack, rich colors can be customized, the backpack is 900D high-density Oxford waterproof fabric, tear resistant, high wear resistance, can be a good protection of the items in the bag, the capacity is 35L. The shouldering system, which is designed to fit the structure of the human back, can effectively disperse the pressure and bring the feeling of extremely comfortable shouldering. The back sandwich net has the effect of rapid heat dissipation, sweating, ventilation and shock absorption.