Personalized About The Shamrocks Women's Plus Size T-Shirt. St. Patrick's Day Women's Plus Size T-Shirt - Heather 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. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)