Building on the runaway success of the rimless Rydon™ design, the KALYOS™ brings a strong value proposition to athletes without compromising function or style. Using Quick Change technology the Kalyos™ lenses can be easily changed to manage any light condition. The 8 base wrap architecture insures maximum protection from the elements. Adjustable nose pads using Ergonose™ll allows wearers to prevent fogging and eyelashes from touching - common problems with competitors. The stylish temples side metal emblems and Safety Project hinges give the Kalyos™ its unique technically cool look and allow an elastic strap to be added for endurance sports. Need Prescription? No worries, the Kalyos™ uses the ingenious optical clip.