Please note:
Transition means the color can transit from clear to dark gray not means bifocal or progressive.
The stronger of the sunlight, the darker of the lenses will be. The lenses can't change color indoor or in the car.
Specification:
Frame Material: Metal
Frame Color: Black / Gunmetal / Blue / Brown
Lens Material: Plastic
Size:
frame width: 138m/5.43in
lens width: 55mm/2.17in
Lens height: 35mm/1.38in
bridge size: 18mm/0.71in
temple length: 140mm/5.51in