I am a city/designated bike trail daily commuter in the Pacific Northwest so weather is a huge factor. I experience rain, fog, freezing temperatures, and sunshine. I start in pitch dark and return in light. I was highly impressed with the customer service rep who emailed me suggestions, links, best fit predictions and color choice that works best for city commuting (brown lens). I am a petite Asian American female so fit was a concern as well as needing a photochromic option. The Rydon Slim comes in so many options including many photochromic color choices. The ability to adjust nose pads as well as the frames is such a benefit. I could easily shape them to fit me well and stay on which has always been a previous issue for me. This week we hit 22 degree morning temperatures and even with a mask on to keep my face warm, I was really impressed how well these are ventilated to keep the glasses from fogging up. Wow! Unexpected and impressive as I thought for sure they would fog up. I have experienced rain and fog and these work so much better than any other glasses I have unfortunately wasted my money on before finding Rudy Project. The brown lens cuts down on glare from rain, lights and oncoming traffic in the pitch black mornings. And when I return home in the afternoons, I can count on the photochromic lens to provide UV protection for my eyes. I am biking about 1.5 hours total every day and these work exceptionally well. I am very impressed with the glasses, customer service and company.