Personalized Groovy Smiley Mimi T-Shirt. Show your appreciation for the amazing grandparent in your life with this stylish and meaningful clothing. It's not just a gift; it's a way to express love and gratitude. Make her feel special and cherished with this delightful Retro Groovy Sunshine Smiley Mimi apparel. 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.