The sealskinz oversock is a lightweight performance oversock produced under our patented stretchdry technology that ensures your shoes and feet remain clean warm and most of all dry this oversock is totally waterproof breathable and windproof and is constructed with sealskinz proprietary stretchdry waterproof breathable and windproof technology with high stretch material that provides ease of fit and a streamlined finish this sealskinz oversock is fully machine washable to ensure they remai