Aclima DoubleWool is designed for those who like to stay outdoors, even in extreme cold. Combines Woolnet and Warmwool The mesh layer creates air pocket between the two layers which gives great insulation Mesh contact points are great for sweat transportation Zipper chin guard with interior storm flap to prevent chafing Rib knitted panels on inside shoulders for comfort and durability Thumb hole Embroidered logo Rib side panels and bottom hem for better fit Aclimas warmest product line MaterialsSecond layer: 100% Merino Wool 320g/m² Liner: 80% Merino Wool and 20% Polyamide