100% polyesterJacket Swede Mount fitting for example, cross country and winter running. STX ™ material where the front and shoulder areas are totally windproof and water repellent. The back has large ventilation panels for optimum heat regulation. Two pockets sealed with a zipper and a high collar with chin guard to prevent chafing on the neck and chin. Highly functional training jacket suitable for those who value comfort regardless of the weather conditions.