the men?s anon helix 2.0 goggle offers low-profile eye protection. cylindrical lens technology provides maximum field of vision without distortion, and the goggle is over the glasses (otg) compatible for wear with eyeglasses. full perimeter channel venting ensures maximum airflow for clear, fog-free vision in all conditions. featuresframe height: 90mmdual layer face foamlightweight thermoplastic polyurethane (tpu) frameover the glasses (otg) compatibleintegral clarity technologyfull perimeter channel ventinganon warranty (1 year from purchase)