Size:51-17-130mm
Front: TR
Side shield+Upper cover: TPE
Temples: TR+Adjustable tips
Tips: TPE
Nose pads: TPR
Lens: PC 6C 2.0mm or TAC 6C 1.0mm
Merits: Side shield and upper cover are detachable, can be replaced with different colors, which can protect eyes from light leakage ,dusts and wind better.