Silium + is a comfortable and ultra lightweight polycarbonate model. Silium + is an excellent choice, combining style, ergonomics and performances for extended use. Ultra lightweight frame, Platinum coating, Non-slip bridge, Straight, highly flexible ergonomic temples, All-round vision, Anti-scratch/Anti-fog Lens marking: 5-3,1 1 FT KN CE Frame Marking: EN166 FT CE, Supplied with a microfibre pouch