Cheap sunglasses for men face shape selection

Every man is like a cool sunglasses, but many people do not know what kind fit for themselves. There are a variety of sunglasses on the market itself, more importantly, different people face fit different sunglasses. Common face shapes are round, square, qual, heart-shape, diamond face, triangle face. Through sunglasses mainly consider three aspects, such as classic wayfarer, clubmaster and aviator.

Which kind of sunglasses fit for mens?