St Patricks Day: I'm Irish We Don't Do This Keep Calm Thing! 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 Saint Patrick's Day Shirt - the Feast of Saint Patrick Shirt - Saint Patrick's Day Shirt - St Patrick's Day T-Shirt - Saint Patricks Day - St Patricks Day - Drunk Day - Lucky Day - I'm Irish We Don't Do This Keep Calm Thing! Saint Patrick's Day Shirt - St Patrick's Day T-Shirt - St Patricks Day Shirt - Saint Patricks Day Shirt - Irish - Shamrock - Men - Women - New Fashion - Green - Funny - Drinking - Drunk - Sexy Lightweight, Classic fit, Double-needle sleeve and bottom hem