Jim HaloSports Sunglasses for Men and Women TR90 Rimless Unbreakable Frame for Running Fishing Baseball Driving

Are these polarized? Seeing people say that they are while others say they aren't. The description says they are.

Are these full adult size?

How do you adjust the nose pieces, mine are made of plastic and I'm afraid that they will break if I flex, or bend them.

what is the difference between polarized gey1 & polarized grey?