go to oakley's website and go to their lenses and they'll tell what lens is good for what ever condition you are in http://www.oakley.com/pd/3279

They are not a good all around lens, since they block more light than almost any other lens tint option. If you want a specialized lens for bluebird days and that killer fire lens look, then it might be worth it, but realized that it is almost limited to very sunny days.

The fire lenses block a little more light, making the bright sunny days a little easier on your eyes. The persimmon lens is more of an all around lens. It's made for more overcast days, but still isn't to straining on your eyes on the bright sunny days. The fire lenses are also reflective looking from the outside if this is something you like or want. So if your eyes are more sensitive to light, then they're worth the money, but in my case, I prefer the persimmon lens in more conditions than the fire lens.