Although there is no essential difference between outdoor clothing and home clothing, the requirements for clothing are relatively strict and harsh due to the clothing to be worn outdoors. Professional outdoor protection fabric is mainly aimed at alpine sports such as mountaineering and skiing. In addition to the physical fitness and skills of the participants, outdoor activities also require outdoor clothing to adapt to harsh weather and complex geographical environment to ensure the personal safety of the athletes.

Outdoor activities require good heat dissipation and air permeability due to large heat generation and sweat evaporation. It is inevitable to encounter rain, snow and fog in the wild. Clothing must have certain waterproof performance. Outdoor protection fabric hope to reduce weight as much as possible, and clothing should be as light as possible.

The wind is strong in the field, the mountains are cold, and the requirements for windproof and warm-keeping are high. Outdoor washing conditions are limited, and the requirements for antibacterial, deodorant and stain resistance of clothing are high. For rock climbing and forest wearing in field work, the clothing should have good stretch resistance and tear resistance. These performance requirements are very harsh from the perspective of textile technology, and even many indicators are mutually contradictory. No single natural or chemical fiber can meet these requirements, and these functions can only be achieved through the combination of multiple fibers and multi-channel chemical finishing.

In addition to finding ways from fibers and coatings, moisture absorption and perspiration can also be achieved as far as possible in the fabric structure. For example, a double-layer structure is adopted, with hydrophobic fibers used in the inner layer next to the skin and hydrophilic fibers used in the outer layer, so sweat can be transferred from the skin to the inner layer fibers by capillary action. Since the binding force between the hydrophilic fibers of the outer layer and water molecules is stronger than that of the hydrophobic fibers of the inner layer, water molecules are again transferred from the inner layer to the outer layer of the fabric, and finally released into the atmosphere.

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