They have a UV 400 label on them so I'm happy that they will protect my eyes from the sun, but the lenses are very very light. I can wear them inside which I'm good with as I am in and out a lot. However if you want dark lenses, these are not for you. as for the frame, I was concerned it may be too light based on the picture, however it is darker than the picture and a classic leopard color. they are super light weight so it is like having nothing on your face which I like. My eyes are very sensitive to the sun and my eyes are comfortable outside with these on but it is only March so the Summer will be the real test if they keep me from squinting.