Personalized Kitten It's My First Valentines Day T-Shirt. Give your little one a stylish start to their Valentine's Day adventures with this charming kitten apparel that they'll cherish for years to come! 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.