Personalized About The Shamrocks Long Sleeve T-Shirt. St. Patrick's Day Long Sleeve T-Shirt - White with shamrocks and confetti says IT'S ALL ABOUT THE SHAMROCKS. Perfect for St. Patrick's Day celebrations and parades or for anyone who loves shamrocks. 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