STEALTH photo chromic
Frame made of Grilamid TR90 material: very lightweight, impact resistant, secure, flexible, virtually indestructible and unbreakable, it bends instead of breaking.
The nose-pad in TPR hypoallergenic material has some special holes to let out sweat. Three sets of interchangeable lenses packed in a very nice shock-resistant case: smoke / red, green or blue revo (depending on the chosen model) and photo chromic anti-fog.
These last lenses in particular (that we purchase from the United States of America, manufactured in a ISO 9001 environment and tested by the Colts Laboratories in Florida) are of clear colour (87 percent of light transmission) but in presence of sunlight (and therefore of UV-A and UV-B rays), they become dark grey coloured (20 percent of light transmission) depending on the intensity and on the acuteness of the same.
It takes them only 8 seconds to go from clear to dark grey and 60 seconds to go from dark grey back to clear (short reaction time). Obviously these lenses, just like all Power Race lenses, 100 percent protect against UV-A (290-315nm.) and UV-B (315-380nm.) rays and of course comply to the strictest quality standards for lenses such as ANSI Z80.3 (in U.S.A.) and EN1836 (in Europe).
Last 'little' detail is the fact that these very special lenses are 100 percent completely anti-fog and when we say 100 percent completely anti-fog we really mean it.
Try to breath on these special lenses even from a very close distance.
They don't get fogged not even on water boiling at 100 Celcius!
Sunglass used by the Pros of the Colnago CSF Inox Pro Team in 2011 , was on the podium of the 2010 Giro d' Italia.
For cyclists who spend many hours on their bikes and that on their way may find different weather and light conditions.