3M Scotchlite Highly Reflective Universal Size Adjustable Helmet Cover 100% Waterproof Rainproof Made with Highly visible 3M Scotchlite Yellow & Silver Reflective Material Fits Adults Universal Helmet Size with Adjustable Elastic Strap Silver Reflective Strips on all sides Keeps the rain out of your hair & off your helmet 100% Waterproof & Rainproof