Coder - trust me x = x +1 t-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 The text reads: x = x + 1 (trust me, I'm a coder) Lightweight, Classic fit, Double-needle sleeve and bottom hem