* High-definition rasin lenses, acurate stregnth and skin friendly frame material. * Ultra thin about 2mm, and super light about 4.5g, reduce pressure on the nose bridge. * Unique key ring designed, cool to store and carry, as portable in your key ring, fashionable and elegant to use. * TR90 frame, durable and great toughness. * Frosted nose pad, strong skid resistance.