uvex pheos IES (Integrated Eyewear System)
Normally, when combining helmets and safety eyewear products, the position of eyewear always directly depends on that of the helmet shell. If the helmet unexpectedly shifts as a result of sudden movement, this inevitably means the visor moves, which can be dangerous as it changes light conditions.
IES stands for Integrated Eyewear System and the name says it all:
With this system, uvex pheos safety spectacles can be pushed up inside the uvex pheos helmet or pulled down to sit on the nose. The sliding element is jointed so that movement of the helmet does not impact the eyewear.