Personalized Mermaid | I Love My Mimi | Grandson Granddaughter Gift T-Shirt. This delightful design is not just a statement; it's a way to express love and affection. Whether for birthdays, holidays, or just because, this apparel is sure to bring smiles and warmth to both grandparents and their little ones. 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.