Kiss Me It's My Birthday Tshirt St Patricks Day 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 Distressed, Vintage, Shamrocks Birthday Tshirt St Patricks Day or Birthday Tee. Birthday Shirt. Lightweight, Classic fit, Double-needle sleeve and bottom hem