Features:
1.Aviation Grade AL-M Alloy Frame, Anti-Scratch
2.Ergonomics Design, Suitable for All Face Types
3.9 Films Imported Lenses
4.Can Be Sun Glasses and Night Vision Glasses
5.Oil Coating Layer, Easy to Clean
6.Rubber Nose PAD, Anti-Slippery
7.Metal Hinge for More Stable
8.Hook Leg with Grain, Increasing Friction & Slippery Resistance