Ray Ban Style sunglasses, to fit 55mm RB2132 lenses such as: https://www.thesunglassfix.com/uk/ray-ban-rb2132-new-wayfarer-replacement-sunglass-lenses-55mm-wide-x-41mm-high
Designed to use these hinges, as shown in the picture. https://www.ebay.co.uk/itm/165114278515
Print as currently oriented, use a low a layer height as possible, with support. A small amount of sanding is required on the medial upper inner lense fitting in order for the lens to fit - apologies, I spent ages trying to sort that out digitally but couldn't manage it.
The sunglasses in the pictures have been sanded, but they look good unsanded too, and sanding them is a PITA! These were printed in colour changing filament.
To fit the lenses, gently warm the glasses under a warm tap, insert the lens into the lateral part of the glasses, and pop the medial part of the lens into place. This will require bending the glasses a little.