I used to see different type of sunglasses selling along the roadside, they are cheap and are of low quality, but it will be good for looks. For, big and genuine manufacturer's, looks is not only the criteria which they will see, but they have to check different pros and cons for manufacturing a sunglass.For a better and useful sunglasses, ISO has released two ISO standards which should be followed by every sunglass manufacturer. ISO 12312-1:2013 and ISO 12311:2013 are the two standards are making a guest piece of sunglasses.
First, ISO 12312-1:2013 standard checks different properties like Eye and face protection, sunglasses for general use. Second ISO 12311:2013 standard is for checking personal protective equipment which helps further testing products by providing specifications and instructions.
Wearing sunglasses have some disadvantages which can be reduced by wearing them, which are manufactured by a renowned and genuine manufacturer.
[Source: ISO]
Products:
Amazon: Ray-Ban RB2132 New Wayfarer Sunglasses,Black Frame/G-15-XLT Lens,55 mm (Ray-Ban)
Amazon: Ray-Ban Gunmetal Polarized Aviator Large Metal 58mm RB3025 004/58 (Ray-Ban)
Amazon: Oakley Men's GasCan Sunglasses,Matte Black Frame/Grey Lens,one size (Oakley)
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