X-Sports Windproof Thermal Half Face Mask - Neoprene & Thermal Fleece Keep You Warm & Block Wind - Ski, Snowboard, Snowmobile, Bike, Motorcycle - Black - One Size Fits Most neoprene Keep your face, neck and ears warm with Wind-breaking Neoprene & warmth keeping Thermal Fleece. Small vent and vent holes around the nose and mouth allow breath-ability and air flow without letting too much cold in. Vents are strategically placed to direct your warm breath away from your goggles to help keep them from fogging. Perfect for Ski, Snowboard, Snowmobile, Bike, Motorcycle, Running, Walking and other cold and windy activities. One size fits most. May be too small for large heads, people over 6 feet tall may have trouble with the fit.