“The K3 glasses are perfect for cycling. I have had my glasses for over 2 years now and decided to purchase the Photochromatic lens'. So far, loving them.”
“The lens work well to adopt to light, however, it's not nearly dark enough. Many times I ended up blinded by the sun even during the winter in the Netherlands. After a week of using them, I switched back to the black lens and haven't used these since.”
