The Devold Nansen wool sweater with zipper is a classic Devold sweater that has been well-known for decades and is still very popular. The Nansen series is named after one of Norway's greatest explorers, Fridtjof Nansen, who was the first person to cross Greenland in 1888—dressed in wool from Devold. This sweater, made from 100% pure new wool from Norwegian sheep, will keep you warm whether you're hiking in the mountains or strolling through the city.