HEAD Rave Eyeguard The official eyewear choice of HEAD professionals including 3 time World Champion, Jack Huczek, HEAD's Rave Eyeguards are stylish and lightweight, designed ultimate comfort and protection. Stylish lightweight impact resistant frame. Distortion free polycarbonate lenses. Anti scratch and anti fog treated lenses. Soft and comfortable non slip nosepieces. Rubber inlay in end of temples for more stability. Removable adjustable elastic strap to hold eyewear in place during play. High quality lens cleaning bag included. Meets ASTM F803 impact standards for racquet sports.