Bjerke V2 Is Three In One Garment, And Is Suitable For Year-Round Use. The Outer Coat Is Made From 2-Layer Windproof, Waterproof And Breathable Bergans Element® Fabric. The Inner Coat Is Made From Technical Wool And Provides Excellent Insulation And Natural Temperature Regulation. The Pieces May Be Worn Separately Or Connected By Their Zips Into A Single Garment.