I’ve had the Kelion for about a year now, before deciding to write the review. First, I think these look great and are really easy to wear. Great coverage and fit. I use these 100% for cycling.
I do have the Rx insert for these and initially I had great troubles keeping these from fogging up while riding my bike. They would fog up so badly that they are actually dangerous and I have to take them off.
With some great support from RP (Brian), I learned how to adjust the nose piece to increase ventilation.
Highly recommend these!!!