Wear what the drivers wear and show your support for Martin Truex Jr. and the #56 team with one of these Aaron's official replica uniform jackets from Chase Authentics. This Official Replica Uniform Jacket replicates the driver's uniform with the authentic accuracy you would expect. This Jacket has a 60/40 cotton/polyester shell and its interior features a 100% poly fill with a Chase Authentics embossed lining that will keep you warm even during the coldest track conditions.