The Women's Exchange III Base Layer Set is expertly designed with advanced polyester thermal technology. This innovative fabric retains and redistributes body heat, delivering exceptional warmth even in the coldest environments. Featuring fast-wicking and quick-drying properties, it ensures you stay dry and comfortable during every adventure. Additionally, a chemical-free anti-bacterial odor control treatment keeps you feeling fresh and confident all day long. Ideal for winter excursions, these thermals are a must-have for staying cozy and active in chilly conditions. Thermal base layer collection Polyester thermal tech fabric re-circulates heat from the body for uncompromised warmth Fast wicking and quick drying properties Chemical free anti-bacterial odour control treatment