Shimano Technium Sunglasses CE-TCNM2CE TCNM2 RUGGED FULL RIM DESIGN AND RIDESCAPE LENS OPTIONS FOR AGGRESSIVE RIDING ON AND OFF THE ROAD. FRAME Durable goggle style frame stays securely in place while riding aggressively. Lens slits for ventilation prevent fogging. Radiused temples with non slip pattern for secure fit and comfort. Reversible nose pad features different front and back thicknesses for fit adjustment. Rilsan Clear G850 Rnew bio based polyamide frames use less petroleum.