Holley Performance Medium Black Button Down Shirt W/Pocket Please review all photos. They are part of the description. See photos for measurements. The Holley Performance Medium Black Button Down Shirt with Pocket is a versatile and stylish piece for men. Made from rayon fabric, this short sleeve shirt features a solid black color with a button-down collar and accents. Perfect for a casual day out, workwear, or even travel, this regular fit shirt has a chest size of 40 inches and comes in a comfortable size medium. The shirt is machine washable and includes a convenient pocket detail, making it ideal for any season throughout the year.