I'm comparing these "Black-Gold Twist/Gold Sensor Mirror" to my Hi-Yellow lenses I used to have from Oakley. They are FAR from that type of lens. I bought these for low light and they aren't that good in it. I could barely see today...it was overcast and dreary and I could see nothing but flat white with these. The Oakley lenses I purchased in the past (and just re-bought) amplified the snow shadows and definition. These were more of a clear cast. If you're looking for a bright, amplifying lens for blah, overcast days then go with something like Oakley's line of "Hi Yellow" lenses.