Kask KOO Open Cube interchangeable lens eyewear adds an open-bottom shield lens options to the KOO line-up. As with the standard KOO Open, the incredible effectiveness, coverage, helmet integration and aerodynamics are complemented by Zeiss optics. Kask o
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 photochromat
