Since your trunk is where most of your heat is emitted, you need a vest that is guaranteed to trap it in and keep it warm in the coldest of conditions. For that, you need the extremely toasty and ultra plush Under Armour ColdGear® Infrared Barrow Vest. The 700-fill down insulation keeps your body toasty, but the real magic happens with the ColdGear® Infrared printed interior that is designed to target, trap, and keep your body heat close to you so you enjoy long-lasting, all day warmth. In extreme conditions, keep your noggin toasty with the 3-piece hood, or take it off and let your hair fly free.