Personalized My first St Patrick's Day Baby's First St Patrick's T-Shirt. Whether you're taking photos or attending a celebration, this outfit is a must-have for your baby's first St. Patrick's Day. It's not just clothing; it's a keepsake that you'll cherish for years to come. Get ready to create unforgettable moments with this delightful 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.