Wolverine's Regulator wind-blocking sweatshirt features Wolverine DuraLock Shield technology that locks wind out and warmth in. DuraLock Shield uses the natural density properties found in tightly woven fabrics for permanent wind protection, keeping cold air out and warm air in. The material is composed of 80 percent cotton and 20 percent polyester jersey fleece that’s fabric washed for softness. A three-piece hood, front kangaroo pocket and side pockets provide extra warmth options, while the full-zip front closure makes the Regulator a great layering piece. The shirt comes in Navy (shown) as well as Bison, Ash and Black.