Look at this sign

Regular and better sunglasses should have some logos, such as product name, color, manufacturer, trademark and so on. Sunglasses should be clearly marked if they can emit ultraviolet rays.

Look at the camera

See if the lens has obvious scratches, scratches, dirt, etc., and whether the combination of the lens and the frame is closely related.

Lens material

Choose sunglasses reasonably according to your different work needs. Lenses include glass lenses and resin lenses. Glass is heavy and fragile.

Lens color

In fact, the color choice of sunglasses is also very important. Different colors have different effects. This does not mean that the color is dark or light. Both gray and green lenses are suitable.

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When buying sunglasses, you must wear them yourself to see if they suit you. After all, everyone's face size is different.

Doesn't mean you can only wear sunglasses in summer. Sunglasses are UV-proof, so you can wear glasses as long as there is sunshine.