Personalized Grandpa's Little Slugger Long Sleeve T-Shirt. Cute Long Sleeve T-Shirt - White for grandpa's home team with baseball and bat says GRANDPA'S LITTLE SLUGGER. The bases are loaded, batter up! Perfect for future baseball stars. 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