The Devold® Nansen sweater is a fundamental part of Devold's history, named after the famous Norwegian explorer Fridtjof Nansen, who completed the first crossing of Greenland in 1888 wearing Devold. Nansen sweaters perform in the toughest conditions, or make you stand out on the street. 100% pure new wool from Norwegian sheep. The zip-neck sweaters have a chin guard to prevent chafing from the zip. Comfortable ribbed cuffs and body. The Nansen zip-neck has a loose fit and is unisex. See the size chart to determine the right size.