Personalized My first St Patrick's Day Baby's First St Patrick's T-Shirt. Perfect for family gatherings, photo opportunities, or simply celebrating at home, this apparel is a must-have for your baby's first St. Patrick's Day. Gift it to new parents or treat your own child to a touch of elegance this holiday season. Embrace the luck of the Irish with a piece that combines style, comfort, and a sense of celebration. 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.