sunglasses with letters senior designer brand sunglasses women's travel sunglasses beach, 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. lens material: high-quality sunglasses are made of high-quality materials, such as polycarbonate or three-element glass, which are scratch-resistant, lightweight and durable. functional accessories: some sunglasses come with extra functional accessories, such as shock-proof bag, moisture-proof case, cleaning cloth, etc., to provide extra convenience and protection..syi