The Nike Women's Pro Hyperwarm Mock Neck Vest is perfect for those chilly workout sessions. It is made with Nike's Hyperwarm fabric that helps keep you warm and dry by trapping heat and wicking away sweat. The mock neck design provides added coverage and protection from the cold. This vest also features a slim fit and stretchy fabric for unrestricted movement. Whether you're hitting the gym or going for a run, this vest will keep you comfortable and stylish.