Dreamed up on an island vacation ("I need some darkass glasses for this brightass day"), these are stylish & high quality sunglasses with lenses that are DARK. There are a lot of nice sunglasses out there, and a few very dark sunglasses. But these are the first very dark, very nice glasses.
Category 4 darkness lenses are rated for extreme light, snow, etc. You can see out of them, but don't drive in them buddy. Oh, also see the matte satin hardware..