This 100% polyester coat is layered with 2 oz. polyfill insulation. Therma Puff insulated technology is designed to trap body heat for added warmth during moderate to high energy activity. Tuff Tech abrasion resistant technology that resists wear and tear. It's also water-resistant! The Dri-Duck jacket also has snap front closures and is embroidered with the historic Hereford brand on the right chest.