"No, I'm Not The DJ!" I'm The Audio Engineer 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 Perfect for live sound/audio mixer/technician/tech Perfect for club lighting designers/ops/techs Lightweight, Classic fit, Double-needle sleeve and bottom hem