Personalized Grandpa Claus Long Sleeve T-Shirt. Cute GRANDPA CLAUS Long Sleeve T-Shirt - Pink with Santa cap is perfect for all Santa's helpers that are granddads, grand pops, poppas and papas. 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