Personalized Irish American Flag Toddler Long Sleeve T-Shirt. Irish American pride Toddler Long Sleeve Tee - Black with USA flag and shamrocks in the national flag colors of Ireland. St. Patrick's Day, St. Paddy's Day. Irish novelty gifts for parades and parties. 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.