Thank you for asking. This is made in the USA.
They look adjustable, but they are not adjustable.
Well these glasses are not tight fitting at all! These glasses measure 7 inches wide.
Well it depends on the size of your face. These glasses measure 7 inches wide.
They will go over small, medium, and some large frame glasses.
A friend of mine borrowed these glasses a few years ago for indoor shooting range use. A few hours later he returned them, and said these were better than his Decot glasses and a lot cheaper. According to him a few 9mm cases struck the glasses. His eyes and the glasses were fine. He now owns two pairs.