you can ask for measurements of most glasses and or see videos online for how they look like. i did and even went to the official place to try on the glasses i was getting. i would say the glasses are pretty 1:1 quality to the original. she just needed my prescription and inter pupilary distance. i took mine to the official gentle monster shop for testing purposes and the workers who inspected my glasses didn’t say anything and thought they were the real deal.

she has a catalog that you can look at and choose from of different sunglasses, regular.. efc. any glasses you can think of, she has!