To reduce eye fatigue and improve performance and safety, photochromic technology automatically darkens and lightens the lens in response to the environment. That’s a huge benefit but it’s not enough. Athletes still need visual contrast when the lens lightens, so we created a lens color called G40 Photochromic. It optimizes visual acuity and depth perception with precise filtering along the light spectrum, maximizing performance in sports where split-second decisions demand the best vision possible. Trading distraction for comfort, the lens also eliminates the harsh blue wavelengths that stress your eyes. Sounds just like what I need for the Kona 24hr.
New glasses to try this weekend, thanks to Craig from Bicycles Inc for organising these for me. First impressions are great. I really like the Rose tint to the lenes, the way the glasses don't move on your face when riding off road & look great to always helps.