designer sunglasses metal hinge men's glasses women's sunglasses uv400 lens unisex, White;black

uv protection: sunglasses provide 100% ultraviolet (uv) protection from harmful uv radiation that can cause eye damage, including uv-a and uv-b rays. anti-blue light: modern electronic devices and everyday light sources (such as leds and fluorescent lamps) emit blue light. sunglasses can reduce eye sensitivity to blue light, reducing eye fatigue and visual discomfort. aurora lens: some sunglasses are equipped with aurora lenses that can change the lens colour under different light conditions to improve comfort and adapt to different outdoor activity environments. design and style: sunglasses come in a wide variety of styles and designs to suit different personal styles and fashion trends. for example, vintage style, sporty style, fashionable and generous design, etc. adaptability: considering the needs of different people, many sunglasses have adjustable nose rests and temples designed to ensure comfort and stability for the wearer..syi