Mountain Bike Shirt - MTB 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 Mountain Bike Shirt for Men, Women and Kids, MTB T Shirts, mtb shirt, bike clothing, mtb clothing Cycling shirts for boys, girls and teen, mountain bike shirts, mtb gift idea bicycle shirt Lightweight, Classic fit, Double-needle sleeve and bottom hem