Personalized Daddy Little Cutie Pi Day Math Girls Long Sleeve T-Shirt. Daddy's little cutie Long Sleeve T-Shirt - White with Pi math symbol in pink for a daughter. Fun baby shower gift for a math teacher. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL