Lavawool"s blend of wool and synthetic fiber is engineered for lasting warmth and dryness. The synthetic fibers in the fabric transfer the moisture absorbed by the wool to a polyester layer, where the moisture is dispersed. Regardless of the elements, you remain warm and dry.Features: * Skull cap is great used alone or perfect as a helmet liner. * Proven superiority in moisture management. * Stretch Lavawool fleece, for the ultimate in form fitting comfort. * Avg. wt. 2oz. * Import.