Personalized Mermaid | I Love My Tutu | Grandson Granddaughter Gift T-Shirt. Whether it's for a birthday, holiday, or just because, this thoughtful gift is sure to be cherished and worn with pride. 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.