The Under Armour Women's ColdGear Mock Neck Activewear Vest is a highly sought-after item on Amazon for women's activewear. This vest is designed with a mock neck, providing extra warmth and protection against the cold weather. It is made from Under Armour's ColdGear fabric, which is designed to keep you warm without weighing you down. The vest also features moisture-wicking technology, keeping you dry and comfortable during your workouts. With its sleek and stylish design, it can be worn as a standalone piece or layered under a jacket for added warmth. The Under Armour Women's ColdGear Mock Neck Activewear Vest is a popular choice among women who prioritize both style and functionality in their activewear.