1.Select a size:

 Sunglasses come in all shapes and sizes! Generally, finding a contrast between your face shape and the frame shape will look good. For example, if you have a round face, more angular frames will work well, and if your face is more square, a rounder softer frame shape will look good. Here are a few popular styles:

· Mirrorshades - Mirrored coating on surface. Used a lot by police officers in the US. They usually come in an aviator or wraparound shape.

· Aviators - Teardrop-shaped lens and thin metal frames. Often used by pilots, military personnel, and law enforcement personnel in the US. Good with any face shape, but best with an oval shape.

· Wayfarers/Spicolis - Popular in the 1950s and 1960s. Worn by Audrey Hepburn in the 1961 movie Breakfast at Tiffany's.

· Teashades - Popularized by John Lennon and Ozzy Osbourne. They're not very effective at keeping light out of your eyes, though.

· Wraparounds - Associated with athletics and extreme sports.

Oversized - Associated with models and movie stars. Glamorous, darling.

2.Use the shape of your face to help you pick your sunglasses shape:

 The following face shape matched to sunglasses style is recommended:

· Oval face: The oval type usually has the "perfect face shape", and can wear any style of glasses. Avoid frames that are either too thick or too thin. Don't choose frames wider than your face width.

· Square face: Because this face shape has very straight, pronounced jawline and edges, choose round glasses to balance out these features. Make sure the frames are not too thick. Try to choose wider sunglasses and avoid rectangular glasses with sharp corners.

· Round face: A round face has plumper cheeks and chin. Choose polygonal or square sunglasses that have an angle design to balance this out. Look for thicker frames.

· Long face: Choose larger lenses and the polygonal frame to modify a long face. Popular retro glasses and sports glasses can be considered.

· Flat face: Choose darker lenses and frames to highlight the contours of the face. Bright colors can also make expressions more vivid!

3.Make sure the sunglasses fit properly.:

Try them on and make sure they don't pinch around your head. The weight should be evenly distributed between your ears and nose, and your eyelashes shouldn't touch the frame or lenses. Glasses should be your stand on the bridge of the nose and ears; if they feel inclined to one side, you need to adjust them. In addition, use the measuring rule that an "eyelash is less than the lens".

· If your sunglasses don't fit well you can go to an eyeglass shop to have them adjusted.

· Make sure that the lens area is not too small, so that it will be able to block sunlight.