Outdoor fabrics are usually divided into two types of breathable cloth and waterproof cloth, which play a very important role in outdoor sports and activities. Air permeability and waterproof performance are the two main characteristics of outdoor fabrics, and these two properties are particularly important for outdoor activities. Permeability refers to the free flow of air inside the fabric, so that the body's sweat steam can be discharged, keep the human body dry and comfortable; The waterproof means that the fabric has a certain waterproof performance, which can effectively prevent the penetration of rain and protect the wearer from the invasion of rain in a humid environment.

For the air permeability of outdoor fabrics, the general use of good air permeability and smooth fabrics, such as nylon, polyester, neoprene, etc. These materials usually have good air permeability, can let the sweat discharged by the human body quickly disperse, keep the wearer dry and comfortable. The outdoor fabric with good air permeability can not only make the human body get better ventilation effect in the activity, but also effectively reduce the discomfort and fatigue caused by poor sweating, and improve the comfort of outdoor activities.

For the waterproof performance of outdoor fabrics, waterproof breathable fabrics are generally used, such as Gortpy, Gortex, Gorzol and coated waterproofing agents, which can effectively prevent the penetration of rain and protect the wearer from rain in a humid environment. Good waterproof outdoor fabric can not only keep the wearer dry during rainy day activities, but also avoid the wearer from feeling cold because of wet clothing, reducing the harm of wet environment to the human body. At the same time, the waterproof breathable fabric can maintain a certain breathable performance while waterproof, so that the wearer can get a better ventilation effect in the activity.

In general, the breathability and waterproof performance of outdoor fabrics are two key factors that outdoor activists need to consider when choosing clothing. Good breathability allows the wearer to stay dry and comfortable during activities, reducing discomfort and fatigue; Good waterproof performance can protect the wearer from rain in a humid environment and keep the wearer dry and warm. Therefore, when choosing outdoor clothing, it is recommended to give priority to fabrics with good air permeability and excellent waterproof performance to ensure the quality and comfort of outdoor activities.