VSN.Kona interchangeable lenses triathlon

Air Circulation Management: From strong ventilation (VSN.Shield Running with 10-point ventilation) for very intensive sports activities, to protection against drafts and turbulence (VSN.Shield Biking with 6-point ventilation) for fast sports, to temperature compensation of up to 80 ° in winter: all system panes can be flexibly exchanged and used.

Retina Shield: The design of every single lens in our range is the result of years of development work and thousands of test kilometers. Together with aerodynamics engineers, we developed our innovative ventilation technology for sports glasses in the wind tunnel. The result is a protected technology that we successfully use in all of our sports glasses: Retina Shield. It is the sum of all quality features of the SIOLS system lenses, which guarantee perfect vision and the best protection without compromise. An efficient and performance-oriented sports lens is characterized by its aerodynamic properties, ventilation and tinting. The lens is the "filter" between the environment and the eye and has two essential tasks. On the one hand to protect the eye from mechanical influences such as dust, on the other hand to support "seeing" as such through intensifying contrasts. Both components in combination with the best possible optical glazing result in the perfect sports glasses lens: the SIOLS VSN.Shield.