A warm combination for high-output activities. The Men's Caribou Crossing Track Jacket utilises two functional insulation materials for optimal warmth and wear comfort. It is made with Jack Wolfskin's warm Nanuk knitted fleece, which is very robust and breathable. On the front of the jacket, Jack Wolfskin have incorporated warm Microguard synthetic insulation. The outer fabric in this area of the jacket also provides basic wind protection – a practical feature when the jacket is worn without a weatherproof shell. Zip it into a waterproof outer jacket with the System Zip and it also works well as an insulating layer with outstanding wicking performance.