Stay warm in extreme cold conditions with the Rocky Women's Thermal Underwear Set. This base layer set is made from a blend of polyester and spandex, providing excellent insulation and moisture-wicking properties. The top features a zippered mock neck for easy ventilation, while the bottoms have an elastic waistband for a comfortable fit. Whether you're skiing, snowboarding, or camping, this set is designed to keep you warm and comfortable throughout your outdoor adventures.