Personalized I Love My Pawpaw Rainbow Hearts T-Shirt. Designed with love and consideration, this product is suitable for both grandsons and granddaughters. With its funny and heartwarming message, "I Love My Pawpaw Rainbow Hearts" design is a wonderful way to honor your grandpa and celebrate the special bond you share. Get one for your grandpa today and let him know he's the best grandpa ever! 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.