Personalized Metal Christmas T-Shirt. Metal Christmas and Heavy New Year! Santa Claus has a tattoo and throws up the rock on hand sign. Merry Christmas, and long live rock! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.