Personalized St. Paddy's Leprechaun Gold Long Sleeve T-Shirt. Happy St. Paddy's Day Long Sleeve T-Shirt - White has big pot of leprechaun gold and room to add a name for a custom holiday gift. 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