First, the choice of breathable outdoor clothing requires attention to the choice of materials. Common breathable materials are high-tech microfiber, bamboo charcoal fabric, three-layer composite materials. Among them, high-tech microfiber with a tiny fiber diameter and large surface area, increasing the air contact area and ventilation performance, improving the breathability of clothing; bamboo charcoal fabric is made of bamboo charcoal particles injected into the fiber, with moisture absorption and perspiration, antibacterial and deodorant effect, while increasing air circulation; and three-layer composite material through polyurethane film and coating technology to achieve the effect of waterproof and breathable inside and outside.