Wearing a rain jacket during a high-intensity effort like trail riding is usually a mixed bag. It may keep you from getting soaked, but copious venting is needed to avoid a humid microclimate which can easily turn clammy. The Summit PRO NeoShell® Jacket changes the game as the first rain jacket to deliver all day comfort while mountain biking. It’s built using a membrane that can move a basketball-sized volume of air from the jacket every minute; it's the world’s most breathable waterproof material. This unrivaled level of moisture transfer manages body temps and keeps you dry like never before. But it’s not just about the breathability. Stretch fabric allows for dynamic movement and the woven fabric improves durability. We designed the hood to fit over your helmet so you can ride through whatever Mother Nature throws your way.