Personalized Twins 1st St Patricks Day Irish Toddler T-Shirt. Twins first St Paddys Day Toddler T-Shirt - White outfit with Irish rainbow shamrocks and pot of gold. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.