Filson Double Mackinaw Cap Cobalt / BlackThe naturally rain repellent, double layer Mackinaw Wool cap features a 3 bill for protection without sacrificing visibility. An insulated, nylon lined crown, along with sheepskin shearling lined earflaps and a neck flap, keeps the head warm and dry. 3 bill protects the face without limiting visibility Insulated, nylon lined crown for warmth Made with 100% virgin wool Sheepskin shearling lined earflaps tie back when not in use Fabric is naturally