Personalized Great Grandpa Funny Fathers Day T-Shirt. Great Grandpa still a classic funny T-Shirt - Pink has chrome style vintage look logo for a new great grandfather. 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.