These terrific mountain bike jerseys area officially approved and licensed by your favorite colleges and universities. Beautifully sublimated graphics feature school colors mascots and logos. Jerseys are meticulously constructed from 100% treated micro fiber polyester for quick-drying moisture transfer ensuring total riding comfort. Show your colors and go team! Available in S M L XL and XXL sizes. Men s Sizing: Medium (40 - 42 Chest); Large (42 - 44 Chest); X-Large (44 - 46 Chest); XX-Large (46 - 48 Chest).