Personalized Twins 1st St Patricks Day Irish Toddler Long Sleeve T-Shirt. Twins first St Paddys Day Toddler Long Sleeve Tee - White outfit with Irish rainbow shamrocks and pot of gold. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.