Personalized Irish Flag Leprechaun Long Sleeve T-Shirt. Funny novelty, lucky proud Irish St. Patrick's Day Long Sleeve T-Shirt - Black with distressed leprechaun top hat, shamrock and Irish flag beard. For St. Paddy's Day or every day. 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