Funny Engineer Shirt Engineer's Motto: If It Isn't Broken... 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 Funny engineer shirt - the engineer's motto: If it isn't broken, take it apart and fix it shirt. Shows the mindset of an engineer, tinkerer, techie, maker, and more! If it isn't broken, take it apart and fix it; after all, you're an engineer! It's a funny engineer t shirt perfect for everyday wear. Lightweight, Classic fit, Double-needle sleeve and bottom hem