The Under Armour Women's ColdGear Authentic Mock is a top-rated base layer set that combines style and functionality. Made from a blend of polyester and elastane, this base layer set is designed to provide maximum warmth and comfort. The dual-layer fabric has a brushed interior for a soft and cozy feel, while the smooth exterior allows for easy layering. The four-way stretch construction ensures unrestricted movement, while the moisture-wicking technology keeps you dry and comfortable. Whether you're hitting the gym or braving the elements, this base layer set will keep you warm and stylish.