The Under Armour Women's ColdGear Reactor Vest is a high-performance vest that is designed to keep you warm and comfortable in cold weather. It is made with a lightweight and breathable polyester shell and filled with synthetic insulation, providing excellent warmth without adding bulk. The vest features a stand-up collar and a full-zip front closure for maximum protection against the elements. It also has two zippered hand pockets and an interior chest pocket for storing small essentials. With its advanced insulation technology and moisture-wicking properties, the Under Armour Women's ColdGear Reactor Vest is a top choice for active women.