Material Advantage TR90 memory plastic frame: ultra-light (only about 20-30 grams), excellent flexibility, 180 bending is not easy to break, comfortable to wear without pressure, suitable for long outdoor activities. Anti-allergy nosepiece: made of medical-grade silicone, soft and close to the bridge of the nose, non-slip and does not irritate the skin, sensitive muscle friendly. Functionality Polarised lenses: effectively filter glare reflected from water, tarmac, snow, etc., improve visual clarity and reduce eye fatigue, especially suitable for driving, fishing, skiing and other scenes. UV400 protection: 100% UVA/UVB blocking, protects eyes and skin around the eyes from ultraviolet rays and slows down photo aging. Anti-scratch and wear-resistant layer: Anti-scratch coating is added to the surface of the lenses, which makes them impact-resistant and longer-lasting. Design Style Airy box/cat's eye/aviator style: classic, versatile, face shape modification (box shows small face, cat's eye style is elegant and retro, aviator style is sharp and dry), suitable for daily commuting, holiday, photo shoots and other scenarios. Trendy colours: black frame/transparent frame/gradient lenses are available, and the temples can be matched with metal decorations or clashing colours, with exquisite details to enhance the overall sense of fashion.