This is the best polarized running sunglasses for men and women.Lens includes 9 layers. The 1st layer is anti-scracth and strengtheningfilm which protects the lenses surface. The 2nd and 8rd layers are bonding layers to enable durability. The 3th 、4th 、6th and7th layers are UV protection layers to absorb UV light. The 5th layer is UV filter membrane.The 9th layer is compressive strengthening layer protection film.Frame is Unbreakable Ultra light and highly Stress-Resistant Material. It perfectly resolves the breaking issues that many sellers are constantly having to deal with. Most importantly, even with our newest technology the sunglass still continue to be both lightweight and durable for all-day comfort and protection.
1.Half rim design
2.Polarized lens with 100% uv protection
3.9 layers coated lens
4.High quality frame