The Anon Helix 2.0 Red w Sonar Red goggle offers low-profile eye protection. Cylindrical Lens Technology provides maximum field of vision and comes with a SONAR lens by ZEISS installed in the frame to enhance contrast for the best possible definition and terrain recognition. The Helix 2.0 goggle is Over The Glass (OTG) compatible for wearing with eyeglasses. Full perimeter channel venting ensures maximum airflow for clear, fog-free vision in all conditions. Includes a spare Amber tinted lens for adjusting to a wide range of weather conditions and a microfiber goggle bag for storage and wiping the lenses clean.