The 100% Celium Short Sleeve (SS) Jersey is for mountain bikers who are looking for a technical jersey that is both comfortable, functional and stylish. Let's start with the materials. It's made up of a combination of Polyester and Spandex Mesh fabrics that are both durable and highly breathable. Both of these materials have moisture management and anti-microbial properties to help wick away moisture and keep the funky smell factor low. No matter how many times you happen to wash the Celium Jersey, the sublimated graphics will never fade. When you decide to push your after-work evening ride from daylight hours to dusk, reflective logos keep you visible on those long dirt roads back to the car. With specifically designed tailoring for mountain bikers, a drop tail provides increased coverage in aggressive riding positions so dirt, trail debris and water stay out of the inside of your riding shorts. It's all about proving the little extra details with the Celium jersey, like its internal goggle or sunglasses wipe that keeps your eyer protection clean while you are on trail and out in the middle of nowhere. With great color options and style to match, it's no wonder why this is one of the most popular riding jerseys out on the market today. Made for hardcore riders, but can be worn by any level of rider who is looking for a technical and stylish jersey to stand out from the crowd. The 100% Celium SS Jersey is sure to please a wide variety of bike enthusiasts.