A gray lenses 

B brown lenses 

C night vision lens 

D transparent lens 

E white and red 

F Gold Mercury

G matte red (red mercury lens) 

H Matte Blue (Blue Mercury Lens) 

J glossy black (double gray lenses) 

K bright black (green mercury lens)

use:Bicycles, motorcycles, fishing, goggles, Hiking

Function:windproof, anti-UV400,Explosion-proof