Stay warm and comfortable during your winter workouts with the Under Armour Women's ColdGear Authentic Mock Neck. This base layer top is designed to keep you cozy and dry, thanks to its ColdGear fabric technology that traps heat and wicks away sweat. The mock neck provides extra coverage and protection against the cold, while the fitted silhouette allows for easy layering under your tennis outfit. Whether you're hitting the court or going for a run, this top will keep you feeling comfortable and stylish all season long.