【ULTRA PHOTOCHROMIC DESIGN】This magical photochromic lens is based on the intensity of sunlight and ultraviolet light. darkening the light grey lens. 

When driving at night or in a dark environment. the lenses are bright and transparent to improve visibility while effectively reducing glare.

During the day. it can effectively filter the strong light. improve visual acuity. reduce eye fatigue. and always keep eyes in the most comfortable state during outdoor activities.

Function:

• Lightweight Al-Mg alloy frame. Adjustable temple. nose pad and flexible arm make you wear better and more comfortably.

• UV 400 Protection: The sunglasses block all three bands of ultraviolet radiation: UVA. UVB and UVC. providing 100% protection to the human eye from the harmful effects of the sun's rays.

• Photochromic polarized lenses: The lenses reduce annoying reflections and glare from light reflecting off surfaces such as water. road. sand or snow. They absorb 100% of UV light and eliminate 99% of glare.

• PHOTOCHROMIC POLARIZED LENS. The lenses are dark in bright sunlight but clear in low ambient light conditions.

Discoloration Test Methods:

• Since some customers don't know how to test lens discoloration. we explain more to know how to test.

• First: Please put the sunglasses under the sun for 10-15 seconds. then the color will change darker. (Remember it's sunshine but not cloudy or rainy)

• Second: You can use UV light to test. the lens will be darker.

• A notice: Please note one thing: do not test discoloration in cloudy weather or indoors. Lens discoloration is caused by ultraviolet radiation.

Specification:

• Frame Color: Black. Dark Gray
• Weight: 200g
• Frame Material: Metal Lens
• Material: TAC

Package includes::

• 1 x Photochromic Sunglasses with Anti-glare Polarized Lens