Personalized My first St Patrick's Day Baby's First St Patricks T-Shirt. Designed with practicality in mind, our apparel is easy to put on and take off, making it a breeze for busy parents. Celebrate your baby's milestone with this charming piece that combines fun and functionality. Dress your little one in style and let the festivities begin! 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.