Port Authority J355 Challenger Vest - Steel Gray True BlackPort Authority J355 Challenger Vest The versatile Challenger Vest has spandex trimmed armholes and hem for long wearing durability. Teklon nylon shell Heavyweight fleece lining for extra warmth 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. Coordinating J355