The Under Armour Women's ColdGear Armour Mock Neck is a top-rated base layer top on Amazon. It features a gradient design that adds a stylish touch to your workout attire. This top is made with ColdGear fabric, which keeps you warm and comfortable in cold weather conditions. It also has moisture-wicking properties to keep you dry during intense workouts. The mock neck design provides extra coverage and protection against the elements. With its excellent reviews and high ratings, this base layer top is a top choice for women looking for both style and performance.