The square-shaped glasses are suitable for round and oval face shapes. The square-shaped frames have a sharper vertical line that balances the proportions of the face. Metal - The eyeglasses frames that are made of metal create a minimalist image.They are light and adjustable nose pads are almost always attached to them for maximum comfort. Men - Men's glasses are extremely strong, usually the contour lines of such frames are quite straight and with clearly defined corners. Rimless - Open-type eyeglasses lenses are only partially enclosed in frames, making them lighter than closed-type. They are durable, also help emphasize the eyes and create an elegant image. Brown - Sunglasses with brown lenses and brown eyeglasses frames are one of the most popular choices. This color is very easy to match and such glasses will always be fashionable.