These Photochromic, Polycarbonate Glasses Are Made With HC Coating Which Provides Lenses With Durability And Increased Longevity

They Are Foldable So You Can Save Space And Take Them On The Go.

Come With A Small Stylish Protective Case That Easily Fits Into Any Purse. 
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Photochromic: These are clear eyeglass lenses that are clear (or nearly clear) indoors and darken automatically when exposed to sunlight. Other terms sometimes used for photochromic lenses include "light-adaptive lenses," "light intelligent" and "variable tint lenses."

How photochromic lenses work
The molecules responsible for causing photochromic lenses to darken are activated by the sun's ultraviolet radiation. Because UV rays penetrate clouds, photochromic lenses will darken on overcast days as well as sunny days.


Polycarbonate: Polycarbonate (Impact-resistant) Lenses Are Shatter-proof And Provide 100% Uv Protection. They're Also Ideal For Strong Prescriptions Since They Do Not Add Thickness When Correcting Vision, Minimizing Any Distortion.
HC Coating: Scratch-resistant coating or hard coating provides lenses with durability and increased longevity. A high-quality thermally cured hard coat provides the best scratch resistance and provides for the most durable ingredient for an AR coating application.

Stylish Case: Comes with a stylish small case that easily fits into any purse without taking up much space.
Specifications

Lenses Color: Clear

Lenses Optical Attribute: Photochromic

Lens Height: 3.2cm

Coating: HC

Lenses Material: Polycarbonate

Lens width: 5.5cm

Frame Material: Plastic Titanium
Lens Width: 1.77inch
Frame Material: Acetate