The metal frame contains nickel due to production process. Customers with a history of nickel allergy should be cautious when purchasing.
If you need Folksy style and do not want lose classy, this kind of glasses maybe your best choice. They are made from good metal so that you do not worry about the quality. With the high grade metal, the total weight of the large frame is 20 grams. They come with three color choices, you can see the picture and choose what you like. With the lenses shape of rectangle, the frame is a requisite if you are an elite.