Vintage aesthetics for individual style Classic design: Inspired by the culture of Harley, Indian and other classic cruisers in the 70s, the streamlined semi-open structure with matte leather or metal texture shell shows the retro rider style. Anti-glare function, safety escort Intelligent colour-changing lenses: The lens adopts photochromic technology, which automatically adjusts the light transmission rate according to the light intensity, turning dark and anti-glare during the daytime under strong light, and restoring transparency at night or in low-light environments to ensure a clear all-weather view. The lenses are equipped with UV400 function, effectively blocking 99% of ultraviolet rays to protect your eyes from harm. Anti-fog and anti-scratch technology: The double layer anti-fog coating combined with the helmet ventilation system effectively prevents the lens from fogging and ensures clear vision in rainy days and low temperatures. The surface of the lens is hardened and coated, which improves the anti-scratch performance by 3 times and adapts to complex road conditions and harsh environments. Comfortable fit Precise head circumference fit: Head circumference range of 54-60cm, covering most Asian head shapes, support for adjustable buckles (double D buckle/quick release buckle), to ensure that the wearer is stable and does not shake. Lightweight & Breathable: Goggles weight 300g, reduce the burden on the neck, suitable for long-distance riding. Forehead air inlet and rear air vent design optimises air circulation and reduces stuffiness. Multi-scenario application, practicality Compatible with myopic glasses: The goggle frame is spaciously designed to easily accommodate myopic glasses without the need to purchase additional custom lenses, suitable for riders wearing glasses. Windproof, Dustproof and Insect-proof: The sealed design effectively blocks wind, sand, flying insects and other foreign objects from entering the eyes, suitable for off-road, long-distance riding and other scenes.