The Berghaus Men’s Ben Arthur 4-in-1 Jacket offers true versatility on the hills. Featuring the protection of a 2-layer GORE-TEX shell and a 600 fill Hydrodown reversible inner jacket. The GORE-TEX outer shell offers waterproof protection and under arm venting delivering technical performance when worn as a stand-alone jacket. The removable Hydrodown inner is reversible and offers 600 fill water resistant down insulation in two additional styles. This lightweight insulation piece is easily stuffed away into its own chest pocket it will find a place on your adventures whether zipped into the outer, worn alone or packed away in your daysack.