Ergodyne n ferno 3 layer extreme cold series winter head liner designed to keep workers warm and comfortable they have warming pack pockets near the ears for warming pack use toasted ears feel better ideal for cold conditions 3 layer nylon foam fleece single wash fr treated shell 100 cotton twill lining 100 poly fleece single wash fr treated specially treated materials retard flames and sparks shoulder length with hook loop chin wrap ideal for use in construction freight baggage drilling minin