When do the Shenanigans Begin Cute St. Patrick's 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 When do the shenanigans begin, as in let's get the fun Saint Paddy's day party started! Bright neon green and yellow gold lettering in fun shapes Lightweight, Classic fit, Double-needle sleeve and bottom hem