Black Jack Mens Adjustable Cap Black/gray Great Cond. The product is a Black Jack men's adjustable cap in black and gray color. It is a stylish and versatile accessory perfect for various outdoor activities such as fitness, running, and yoga. The cap features a one-size-fits-all design, making it easy to wear and comfortable to use. With a sleek and modern style, this cap is a practical and fashionable choice for any man looking to add a touch of sporty flair to their outfit.