DUCOPolarized Sunglasses for Women Retro Round Women's Sunglasses Classic Vintage UV400 Shades DC1230

I have kind of a wide head and often get headaches if the sunglass bands squeeze my head. Are these pretty loose or more tight fitting?

do these sunglasses come with a case ?

Where are these made?

The one I bought had irregularities on the lenses, did anybody else experience that? I was wondering if it was the one I received or a general quality