Personalized Santa Merry Christmas Long Sleeve T-Shirt. Santa Claus pops out of a pile of colorful Christmas presents with a red and green Merry Christmas above him. Ho Ho Ho! Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL