SRANDER Modern Fashion Full Metal Frame Flat Lens Aviator Sunglasses For Men Women metal frame polycarbonate lens polarized [POLARIZED LENS] Providing the protection from glare while outside or while driving, along with the visual correction you needed for optimal vision. So,whether you drive, fish, traveling, or just spend a lot of time in the sun, polarized sunglasses could increase your comfort, while protecting your sight. [UV400 PROTECTION] It provide close to 100 percent protection against harmful UVA and UVB ultraviolet radiation.UVA and UVB is invisible but can penetrate the clouds and cause a sunburn. All sunlight up to 400 nm wavelength can be blocked by SRANDER sunglasses lenses, so you can get a full protection. [HIGH QUALITY FRAME] Made with only the highest quality materials, these sunglasses were constructed using special design techniques in order to ensure durability and avoid breakage while engaging in sports and recreational activity. [7 DAYS UNCONDITIONAL REFUND,30 DAYS MONEY BACK GUARANTEE] 100% satisfaction guaranteed. That is our promise. So, if you are not completely happy with your purchase within 30 days, just let us know. We will do our best to make it right.