St. Patrick's Day Shirt - Lucky Four Leaf Clover Graphic Tee 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 Perfect novelty St. Patricks day t-shirt for guys or women. Cool t shirt for any age. Lightweight, Classic fit, Double-needle sleeve and bottom hem