Kask KOO Open interchangeable lens eyewear is gaining popularity for it's incredible effectiveness, coverage, helmet integration and aerodynamics. Kask offers various lens options for the KOO Open, with standard, clear and a UV light changing photochromatic option available.

Precision crafted Zeiss lenses for the KOO Open are easily installed, with minimal handling of the actual lens. Equip your KOO Open frames with all the lenses you will need for your cycling adventures.