Personalized Kawaii Narwhal Gram's Sweetheart T-Shirt. Looking for a gift for your grandmother that celebrates her love for her grandchildren? Look no further than this Kawaii Whales Gram's Sweetheart design! This cute design features a whale surrounded by hearts, making it the perfect way to show your grandma how much you love her. Best of all, this design is available on a variety of products, so you can find the perfect gift for your grandmother, no matter her style. 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.