Lightweight TAC Polarized Tinted Classic Vintage Retro 70s 。*Clarity and comfort: The TAC lenses comply with the UV400 standard, avoiding eye fatigue and headaches; the polarisation effect is greater than 99% which can enhance visual sensitivity by reducing the glare reflected from objects, making what is seen clearer and brighter *Upgraded material: Upgraded TAC material, unlike ordinary TAC and PC lenses, they are better in terms of clarity, protection, comfort, and applicability; TR 90 frame, an ultra-lightweight material that is flexible and hard to impact, not easily abrade; the nose rest and the feet of the frame are made of rubber to eliminate slippage *High stability: The frame is elastic and tough, not easy to break and deform, so it has a sports safety *Multi applications: TAC coating that does not absorb water easily, thus avoiding water spray from blocking your vision, making them suitable for rainy days, beaches, yachting trips, etc. And they are stylish and suitable for casual and outdoor occasions DS-0907