Windproofness prevents air flow from penetrating the material, which would otherwise expel hot air from around the body, cooling it. This is usually achieved through tightly woven materials with a highly functional weave, or through lamination – coating. Windproofness technology has versatile uses, and is suitable for various year-round weather conditions. It is used in combination with other material properties, especially for outdoor activities, trekking, extreme sports, as well as leisure walks.