The Under Armour Women's ColdGear Reactor Vest is a top-rated sleeveless hooded insulated activewear vest that is highly sought after by women on Amazon. Made from a blend of polyester and elastane, this vest offers excellent warmth and flexibility. It features a hood with adjustable drawstrings, zippered hand pockets, and a full-zip front closure. The ColdGear Reactor technology adapts to your activity level, providing the right amount of warmth and breathability. Whether you're running, hiking, or working out, this vest will keep you comfortable and stylish. With its innovative technology and sporty design, it's no wonder why it's one of the most wished-for items on Amazon.