Port Authority Reversible Terra-Tek Nylon and Fleece Vest - Black /Black J749 2XL Terra-Tek nylon reverses to 13-ounce fleece Front and back vents with hook and loop closures Nylon side is double stitched with zippered pockets Due to a Tyvek inner lining, a silk screen or heat transfer treatment is not recommended on Goldenrod/Black.