Note:The rate of discoloration is related to the intensity of ultraviolet light and thetemperature.(ifUV intensity and temperature is low・The speed of discoloration will become slower・

Tips 1 :

style 1 is one lensstyle・ style 2 is two lens style.

Style 2 Photochromic effect better than style 1

style 1 is the 3 in 1 lens・ Photochromic Polarized UV400 in 1 lens

style 2 have 1photochromic lens and 1 polarized lens

Tips 2 :

The glasses lens original color is gray ・ so when it's change color ・ If light is not strong・ then the reaction is not so obvious. If the glasses lens initial color is transparent lens ・ then the reaction is obvious.We have other model glasses ・ it's transparent lens so reaction is obvious .

Style 1(3 IN 1 style)

Product details:

ROCKBROS 3 IN 1Polarized Photochromic glasses

Gender: Unisex

lenses: 3 IN 1 LENS

Transmittance:80%-18%

(80% is light gray color when in low UV・ 18% is dark gray colorwhenin high UV)

Color: Black Red

Weight:26g/pair

Lens Material: Polycarbonate・ PC

Material frame: TR Plastic Frame

Protection cyclist eyes from UV-400 UV (100% of UV protection)

Non-slip nose pads is adjustable.

Purpose: cycling・ skiing・ sledding children・ fishing ・runing ・and all outdoor sports

Specifications:

• 1 glasses frame
• 1 lens
• 1glasses cloth
• 1 glasses box
• 1 glasses bag
• 3 frame accessories
• 1 polarized lens test card
• 1 Myopia frame