Dimming photochromic lens adjust the brightness of the lens for ultraviolet radiation series.
Lens features: visible light transmittance 80%-12% UV transmission, less than 0.1% material Polycarbonate （ ペトロイド ） and light lenses.
Width x height (mm) 147 x 44, weight 29 g, curve number 8, accessories-only hard case included （ A-205), non-slip rubber, adjustable nose pads, air intake.
Even running outside can be used in a variety of sports, such as cycling, golf.
Manufacturer's 2-4 working days charged the merchandise can be ordered for delivery. Manufacturers of it please note size out of.