Sunglasses should not only protect your eyes against harmful UV rays, but also frame your face in a flattering manner. That’s why you should never choose a pair of sunglasses only because it is trendy: round sunglasses should also suit both your face shape and your personal style.
Of course, they should also fit you perfectly! They should both look and feel good. They should be comfortable: not too big or too heavy. Your eyelashes are not supposed to touch the lenses.
The color of the frames should complement your skin tone. Those with cool skin tones tend to look best in black, blue, magenta, and darker tortoise frames. Those with warm skin tones tend to look best in gold, copper, camel, and off-white frames.
The color of the lenses is more than a question of style, though, because it affects how well you distinguish colors and contrast when wearing the polarized sunglasses for men. For example, brown lenses can somewhat enhance contrast because they are blocking blue light to an extent. Yellow and amber lenses are blocking most of the blue light, which significantly increases contrast. They do that, though, on the expense of color recognition. Grey lenses, on the other hand, can reduce light intensity without drawbacks in regard to color and contrast.
What about the styles of sunglasses? Aviator, wayfarer, round, semi-rimless? The wayfarer is a classic shape that looks good on anyone. Cat-eye is a retro, feminine style. Butterfly frames are oversized, and perfect for hiding yourself from the world. Shield and wrap sunglasses are covering even more of your face, which makes them a good choice for sport.
When it comes to choosing a pair of sunglasses which goes well with your face shape, the general rule is to pick a frame that contrasts with your face shape. If you have a round face, your face is widest across your cheekbones. You need a pair of sunglasses that can set that roundness off. Pick a pair with square or rectangular lenses, but make sure that the frames are equal to the width of your face. Thicker frames complement a round face.
If you have a square face, you need frames that can soften your facial features. Round, oval, or even cat-eye shaped sunglasses with softly curved, thinner frames will work for you. Do you have a heart-shaped face? Rimless frames are a good choice. Angular shapes can be a good fit as well. Oval face? Lucky you: you can pull off almost any size and style!