The Men's Argo Supreme Jacket is an extremely lightweight down jacket. Packed away in its stuff sack, this warm jacket takes up so little space that you can take it with you everywhere.Put it on, and it instantly starts to warm you while maintaining a pleasant internal wear climate. This is because Jack Wolfskin have used a very high-loft down fill with outstanding warmth-to-weight performance. The special fill chamber construction ensures the down does not slip inside the jacket. And the ergonomic adjustable hood keeps your head nice and warm too.