DSO brings you unmatched quality, superior protection, and fit while keeping you at the cutting edge of style by introducing patented new designs. Every frame is made of Grilamid TR-90 which is the ultimate nylon material for active sport sunglass frames, ultra-light-weight, tough, flexible, and resilient. _FEATURE_ nylon frame | polycarbonate lens | Polarized | High definition polarized lenses reduces up to 99.0% of reflective glare | Lens technology: Polycarbonate lenses are 40x more impact resistant than glass. | 100% protection from harmful UVA and UVB rays. | Smoke lens provides natural color viewing and increased protection on sunny days. | Amber lens provides high definition contrast and increased vision depth for overcast days.