Personalized About The Shamrocks T-Shirt. St. Patrick's Day T-Shirt - Gold 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. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.