Kindly Note:Jersey tag size is Asian size,that runs smaller than US standard,please check the size chart.We recommend one size up to buy,that means if you wear US L please choose Asian XL. Wear-resistant, Sunscreen, anti ultraviolet, strong YKK zipper, cleaning does not fade. Polyester, Spandex. Fleece fabric, soft and warm, Ultra light, antistatic treatment,effectively improve the clothes not adhere to your skin, dust adsorption. Elastic Breathable fabric wicks quickly away moisture and keep you dry, Coolmax 7D anti-bacterial padding for great comfort. Perfect design for cycling riding racing hiking or camping outdoor sports. The jersey is professionally styled,The fit is somewhat on the slim fit side, without the usual baggy and loose fit common with other brands.the versatility of the jersey allows you a variety of both indoor and outdoor use even under extreme wintry weather. This includes: cycling,leisure walks,morning jogs and runs.