Personalized I Love My Gramp Rainbow Hearts T-Shirt. Made with love and care, this product is available in various forms such as t-shirts, mugs, and more. It's a beautiful way to honor the special relationship between grandparents and their grandkids. Get the "I Love My Gramp Rainbow Hearts" design today and spread the love to your beloved grandpa, grandma, or any other special grandparent in your life! 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.