The Under Armour Girls Coldgear Fitted Mock is a next to skin base layer that makes the ideal thermals for any outdoor sports this winter. These girls thermals are very similar to the ladies Under Armour Coldgear base layer and are made from a brushback knit that helps to trap heat close to the skin. Under Armour base layers also have superior moisture transport to ensure sweat is moved away from the body keeping you warm and comfortable.