Universal sunglasses Kilpi BIXBY-U have an ultra-light frameless design and stylish robust photochromic glass. They are able to react to changes in solar radiation by darkening or shading. lightens depending on the intensity of radiation. Anti-skid silicone bars and nose seat ensure stability and comfort. Category 3 slides, for bright and very bright sunny days, transmittance 8-18%, UV 400, not suitable for wearing in dim or poor visibility. During transport, you will appreciate the solid padded cover and soft cloth for cleaning glasses. Weight only 24,9 g. Choose from multiple color options.