Peace Love Shamrocks - St. Patrick's Day T-shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Show your green on St Patricks Day with this Shamrocks Shirt Fun Irish Pride tshirt to wear on Saint Patricks Day and every day. Lightweight, Classic fit, Double-needle sleeve and bottom hem