Sounds reasonable to me, Bitt. I agree, and I might even consider them next time I need sunglasses. I've got pretty big ones now that look like goggles on my girlfriend, and they're still a little too small for me. The arms go outward and I still have the little indentations I remember so well from eyeglasses.
Incidentally, I recently found a Washington Nationals fitted ball cap that just barely fits me. It's a 7 and 7/8. I could easily go with an 8, if not a little larger.
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Matt