Personalized My First Valentines Day Long Sleeve T-Shirt. It's baby's 1st Valentine's Day! This adorable kitten is surrounded with hearts and lots of love. Happy first Valentine's Day, little one! 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