As a specially designed sports clothing, the fabric needs to have a variety of functional requirements to ensure that the wearer remains comfortable and safe in snow sports. Here are a few functional requirements to consider:

1. Warm function: ski wear needs to keep the wearer warm in extremely cold snow environments. Therefore, the fabric needs to have excellent thermal performance, can effectively block the invasion of the outside cold air, reduce the loss of heat.

2. Moisture permeability: During exercise, the human body will constantly discharge a lot of sweat, if the ski wear fabric lacks good moisture and sweat function, the sweat will stay on the skin surface, causing the wearer to feel uncomfortable and cold. Therefore, the fabric needs to have good air permeability and moisture permeability, can discharge sweat in time, and keep the wearer dry and comfortable.

3. Flexibility and comfort: skiing is a sport that requires a large amount of activity, and the fabric of the ski suit needs to have a certain degree of elasticity, which can follow the movement of the body and naturally stretch. At the same time, the fabric also needs to be comfortable and soft, without friction or restraint, allowing the wearer to move freely.

4. Wind and waterproof function: In the snow environment, wind and waterproof function is also an important demand for ski wear. The fabric needs to be able to effectively prevent snow intrusion and keep the interior dry and warm. At the same time, the fabric also needs to have a certain waterproof performance, can resist the wet snow, to ensure that the wearer is not affected by moisture.

5. Wear resistance and tear resistance: skiing is a relatively high-intensity sport, and the wearer needs to move and operate in various extreme environments such as bamboo, rattan and snow. Therefore, the fabric of the ski suit needs to have a certain wear resistance and tear resistance, can withstand the friction and tear of the external environment, and maintain the integrity and service life of the clothing.

In general, the fabric of the ski suit needs to have a variety of functional needs such as warmth, moisture permeability, elasticity, comfort, wind and water proofing, wear and tear resistance, to meet the comfort and safety requirements of the wearer in the snow environment. Designers need to consider these functional requirements, choose the appropriate fabric, to ensure that the ski wear has good performance and use experience.