Port Authority Challenger Vest. J355The versatile Challenger Vest has spandex-trimmed armholes and hem for long-wearing durability., Teklon nylon shell, 8.3-ounce, 100% polyester fleece body lining, Double-needle stitching throughout, Slash zippered pockets, Port Pocket for easy embroidery access, Binding at armholes and hem, Due to a Tyvek inner lining, a silk screen or heat transfer treatment is not recommended for Goldenrod/True Black.