Just One More Dirt Bike I Promise 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 Dirt Bike, Dirt Bike shirt, Dirt Bike fans, mudding, motocross, mx, motorcyclist, mx, mx shirt, handlebar, supermoto, supermotard, chopper, bobber, racing, motorcycle Lightweight, Classic fit, Double-needle sleeve and bottom hem