These sunglasses feature multi-layer TAC HD polarized lenses equipped with UV400 protective coating, capable of blocking 99 percent of harmful UVA and UVB rays. The seven-layer lens structure includes outer and inner wear-resistant layers, dual explosion-proof reinforcing layers, ultraviolet filter layers, and a central PVA polarizing core layer, which absorbs ultraviolet light and eliminates surface glare to protect eye health. The sunglasses adopt a polycarbonate frame with surface elastic paint treatment, delivering skin-friendly performance with low allergenicity. The frame features high elasticity, bending resistance, scuff resistance, sweat resistance and corrosion resistance for stable daily use. Weighing only 21 g , the ultra-light frame structure reduces wearing burden and adapts to long-time wear scenarios. The product adopts a natural fit closure type and is imported with integral durable structural design for daily outdoor and daily wearing use. Color: Black.