Material
Polycarbonate
Unbreakable polycarbonate lenses ensure the best protection for eyesight. The specific is lightness of material and unique technical proprieties, long-lasting vitality, elastic.
Acrylate
Acrylate is extremely plastic and resistance stuff, actually one of the polycarbonate alternative. On of the biggest advantage is his great optical lucidity.
Polar C lenses
Light reflected from surfaces like a flat road, snowy hills or smooth water is generally horizontally polarized. This horizontally polarized light is blocked by the vertically oriented polarizer in the lenses. The Polar C-lens brings a reduction in annoying and dangerous glare.
UV 400 protection
UV 400 coating eliminates ultraviolet rays of 400nm or shorter wavelength. Transparency is greatly improved compared to conventional UV coated lenses. All glasses under the KEEN are equipped with UV 400 filter.
Lenses adjustment
ANTI-FOG surface
Special treatment on the inner surface of lens protects against the fogging. Necessary mainly in Winter snowing weather. Winter FREEZE collection is equipped of anti-fog surface.
Centered lenses
Even the deep curvature of the lens, which is necessary for an undisturbed view of the track, does not result in the distortion of free vision.
Change Lens Concept
Gives option of quick and easy lenses replacement. This mechanism supports the possibility of multilateral use in different weather conditions. Three sorts of colors support to regulation of the insolation´s intensity and lights during the sport activities.
KEEN bike XC set & FREEZE winter set include 3 colored – styles of Change lens concept.
LENSES COLOR
The lenses of sun glasses are colored towards the light reduction. The final coloration influences the character of our reception and signal ability. The degree of coloration directly links to light infiltration.
SMOKE - Due to their capacity to absorb the same amount of light, smoke lenses are extremely comfortable. To some model sis added a flash mirror coating to enhance protection.
BROWN - Brown lenses improve contrast and help pick out undulations in the snow. We added a flash mirror coating to enhance protection. This lens is available also with filter category 4, very dark tint, recommended in extremely sunny conditions at high attitude.
COLORED - Colored lenses transmit a high quality of light, but give the same protection against harmful radiations as dark lenses. Yellow, orange, pink lenses preferred in cloudy conditions. This lens suggested also for high altitude.
