Barton Perreira 's 'Corso' sunglasses have been handmade in Japan from black acetate and lightweight gold-tone titanium - the filigree etchings at the temples and bridge bring vintage pairs to mind. The round 52mm frames sit on the larger end of the scale, so they'll flatter most face shapes. - - Black acetate, gold-tone titanium - Dark-grey lenses - Come with a hard case - 100% UV protection - Made in Japan