Silium + is a comfortable and ultra lightweight polycarbonate model, and an excellent choice, combining style, ergonomics and performances for extended use. The glasses have an ultra lightweight frame, Platinum coating, non-slip bridge, straight, highly flexible ergonomic temples. As well as all-round vision, anti-scratch/anti-fog. Supplied with a microfibre pouch. Lens marking: 5-3,1 1 FT KN CE. Frame Marking: EN166 FT CE.