Smith whatever fits your helmet/face with ChromaPop storm yellow lens or Oakley whatever fits your helmet/face with Prizm rose, pink, or persimmon lens. I've accumulated like 5 or 6 different lenses for my crowbars over the years, and I use the prizm rose lens probably 90+% of the time. Unless it's a super sunny spring day, or a clear day out west, they block out enough light, and I think they do just as well at night and even better on overcast days than the high intensity yellow lens that was kinda the standard for those conditions for many years. Don't be deceived by light transmission values and see that obviously a clear lens lets through the most light and think it's best for low light days. While some of the color options do technically block out some light, the base color and various laminates or coatings that are used help to enhance certain colors which increases contrast. So while everything may technically be "darker" while wearing something like the prizm rose lens, you can actually make out contours in the snow, ice, etc better. I swear it's not just marketing hype; everyone I know who's looked through a prizm lens has been pretty surprised by the difference it actually makes.