Personalized Irish American Flag Long Sleeve T-Shirt. Irish American pride Long Sleeve T-Shirt - White 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. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL