The Jack Wolfskin Skyline Jacket is all about action and movement Made from a super stretchy fleece fabric the jacket is more than a match for the tough challenges you set yourself The fabric is super breathable and regulates the internal wear climate by wicking moisture efficiently to the outside Worn under a trekking jacket or on its own in milder weather the SKYLINE fleece keeps you warm when you re out on the trail The hood provides additional warmth and the jacket is cut slightly longer to protect the lower back The large pockets offer plenty of space for your map gloves and snacks