These long lasting, high quality Winter Liners offer the comfort of extra warmth from cold and wind. Recommended for linemen, construction workers, and workers exposed regularly to cold or sub-freezing temperatures. Flame Resistant Liners Both shell and lining are flame resistant (except sherpa lined liner). All Flame Resistant Liners feature a hook and loop chin strap and slots for HOTRODS Ear Warmers. Available with twill or quilted outer shell and fleece or sherpa linings. Navy 100% cotton twill shell and white Sherpa lining| Flame retardant until washed| Liner features warming pack pockets lined with Tyvek and elastic gap eliminators Safety Products. Recommended for linemen, construction workers, and workers exposed regularly to cold or sub-freezing temperatures.