Fashion DesignSquare frame shape: classic and versatile, slimming face shape (especially suitable for round face and goose egg face), enhancing the aura, suitable for holiday, city walk, photo shoots and other scenarios.Colour and details: the frames are available with colour-matched gradient lenses, with metal decorations or clashing colours to enhance the sense of sophistication.FunctionalityPolarised lenses: Filter glare reflected from water, snow, tarmac, etc., improve visual clarity and reduce eye fatigue (especially suitable for beach, snowy mountains, self-driving tours).UV400 protection: 100% UVA/UVB blocking, protects eyes and skin around eyes from UV damage.Lens material: made of TAC (Tri-Acetate Cellulose) or PC (Polycarbonate), impact resistant, lightweight and durable.ComfortLightweight design: The frame material is made of TR90 (memory plastic) or titanium alloy, which is suitable for long time outdoor activities with no pressure when wearing.Ergonomic Nose Rest: Adjustable or soft nose rest, adapt to different nose shapes and avoid slipping.