Soft and Comfortable: There are mesh cushions on the back and shoulders, which not only provide soft touch, relieve shoulder fatigue, but also absorb some sweat. 【Various Function】There is a pocket on the right side of the system which can put the mobile phone, and three small tools, such as a screwdriver, a small hammer and a crowbar, can be placed on the other side. Adjustable and elastic: adapts to almost any body. The adjustable length of the strap means it can be adjusted to fit the whole body. At the same time, it is elastic and can fit your body perfectly and make you feel comfortable. 【Reduce physical burden】With the H-shaped design, the weight of the kit can be evenly distributed from waist to shoulder. Relieve back pain and work longer. Adjustable size: You can adjust the length of the four shoulder straps according to your body, fit your body, improve the efficiency of your work.