Men's Heated Lightweight Down Vest (Apparel Only)Feature Details AATCC 90 certified shell with a durable water repellent (DWR) finish helps you survive the elements. The collar is specifically crafted with fleece lining, bringing the comfort to the next level. 2 hand pockets and 2 inner chest pockets with durable YKK zippers for extra storage. 800 fill power duck down features an outstanding warmth to weight ratio and meets the Responsible Down Standard (RDS). Heating System Heating Performance 4