Gregg Homme Fire Muscle Shirt. Finally, a sexy, yet comfortable, and breathable muscle shirt! Show your body to the world and be proud of it! Perfect for clubs, parties, or lounging around. This muscle shirt is completely hole punched with the pieces still attached. 90% Polyester 10% Spandex. If you like this product, type "Fire" in the search box, located on the top left corner. ENJOY!