Penn HEAD Impulse Protective Eyewear Goggles are used to protect racquetball players against eye injuries caused by fast-moving racquetballs and racquets Ultra-lightweight design. Anti-fog treated Hinged-style temples for extra comfort Distortion-free shatterproof polycarbonate lens Adjustable clip-on strap secures the goggles in place, so athletes can focus on the game Ultra-lightweight design. Anti-fog treated Hinged-style temples for extra comfort Goggle-style one-piece lens for maximum protection Distortion free shatter-proof polycarbonate lens Adjustable slip-on strap holds eyewear in place during play