The extremely fine fiber structure enlarges the fabric surface and thus enables high air trapping resulting in good insulation against the cold. The material hardly absorbs moisture, is light, and provides good moisture transport. It has a soft velvety grip and keeps pleasantly warm. The new, sustainably produced fiber generation TENCEL® (basis: renewable raw material wood) is used in combination with special polyester yarns. The structure of the skin-friendly TENCEL® fiber provides ideal moisture and climate management.