Personalized Great Grandpa Star Long Sleeve T-Shirt. Great grandpa the star on our family tree text inside a star is a unique gift design for Father's day, Grandparents day, birthdays and winter holidays. 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