Protection UV Protection: Made of high-quality lens material with UV400 protection, it can effectively block 99% to 100% of UVA and UVB rays, providing all-around UV protection for the eyes, preventing UV damage to the cornea and retina, and reducing the risk of eye diseases. Anti-glare and Polarised Function: Equipped with polarised lenses, they can effectively filter the reflected light and glare from the surface of various objects such as water, road, etc., reduce the scattering and refraction of light, make the field of vision clearer and more comfortable, especially suitable for use in environments where the sunlight is strong and there is a lot of reflected light, such as seashores, snowy places, roads, etc., so that you can see more clearly when you are outdoor sports, and reduce eye fatigue. Windproof and dustproof: the frame design is tight and the gap between the lens and the frame is small, which can effectively block the wind, sand, dust and debris from entering your eyes, providing good eye protection for high-speed sports such as riding, skiing, motorbike riding, etc., and keeping your eyes comfortable even in bad weather conditions. Impact resistance: The lenses are made of high-strength polycarbonate (PC) or other materials with excellent impact resistance, which has excellent impact resistance and can withstand the impact of a 16g steel ball falling freely from a height of 1.27m without breaking, which complies with the relevant safety standards, and protects your eyes from injuries in the event of accidental falls, collisions or flying objects. Lens Features High Definition Vision: Advanced optical technology ensures that the lenses have high clarity and low distortion, providing clear, sharp vision and reducing distortion and blurring of the image, allowing you to accurately observe your surroundings and capture every detail during outdoor sports, whether you're enjoying the scenery or paying attention to the road in motion. COLOUR CHANGE FUNCTION: Some styles of sunglasses are equipped with photochromic function, which allows the lenses to automatically adjust the colour shade according to the change of light intensity. When the sunlight is strong, the colour of the lenses will become darker, effectively blocking the strong light; when you enter the indoor or low-light environment, the colour of the lenses will quickly become lighter, ensuring a clear view and eliminating the need for frequent replacement of glasses, which is very convenient for your outdoor sports. Special Coating: The surface of the lenses is coated with multiple layers of coatings, such as transmittance enhancement film, anti-scratch film, waterproof and oil-proof film, and so on. Transparency enhancement film can improve light transmission rate, reduce reflected light and enhance visual contrast; anti-scratch film makes the lens more wear-resistant and less prone to scratches, prolonging the service life of the sunglasses; waterproof and oilproof film makes the surface of the lens hydrophobic and oleophobic, so that the water droplets and oil are not easy to adhere to, making it more convenient to clean and maintaining the clarity of the lens. Frame Design Lightweight and comfortable: The frame is made of lightweight materials such as titanium alloy, aluminium alloy, TR90, etc., which ensures durability and reduces the overall weight of the sunglasses, and does not put too much burden on your nose and ears when you wear them for a long time, so you can feel relaxed and comfortable when you are exercising outdoors. Ergonomic Design: Designed according to the principle of ergonomics, the temples and nosepiece are adjustable, which can be fine-tuned according to different face and head shapes, ensuring that the sunglasses fit your face tightly and are not easy to slip off, providing a comfortable wearing experience, and keeping you stable even during strenuous sports. Fashionable Appearance: A wide range of fashionable and trendy styles and colours are available to meet the individual aesthetic needs of different consumers. Whether it is simple and modern style, retro classic shape or individuality and flamboyant design, can let you enjoy the outdoor sports at the same time, show a unique fashion taste, become the focus of the outdoors. Applicable Scene Running: Designed for running enthusiasts, with good anti-slip performance, it can effectively prevent the sunglasses from slipping off due to sweat, so that you don't need to worry about the glasses shifting during the running process, and focus on the sport itself, and at the same time, provide a clear view to help you observe the road conditions and the surrounding environment. Cycling: Suitable for cycling, they not only provide protection from UV rays and wind and sand, but also have good ventilation properties, which prevents the lenses from fogging and ensures clear vision during cycling. In addition