The Ear Cover 2 is made of Enerblock fabric that is brushed on the inside for warmth but has a polyurethane membrane and a water-repellent treatment for protection. Hook-and-loop fastener helps achieve a perfect fit.. . Brushed interior soft shell for wind and water protection. Thermal insulation for comfort. Fits great under a helmet. Made out of Enerblock, an insulating, waterproof, windbreaking material. Velcro fastener. Reflective accents. Weather: Wind. Imported.