The outer part of the Men's Jasper 3-in-1 Jacket is made from a very soft textured version of Jack Wolfskin's weatherproof Texapore fabric and equipped with stretch inserts on the back. It provides you with versatile protection during your winter activities. The jacket keeps you dry even during prolonged periods of rain or snow and also blocks the wind completely.A fleece inner jacket provides the warmth and can be docked with the outer jacket via a System Zip. The two garments can be detached and worn separately. And for even better wear comfort, the Men's Jasper 3-in-1 Jacket also features venting zips under the arms.