Tifosi Saxon Sunglasses Gold Brown nylon frame polycarbonate lens Grilamid TR-90 frame: high alternative bending strength, low density, and high resistance to chemical and UV damage Optically decentered lenses eliminate distortion and prevent distracting magnification Shatterproof polycarbonate lenses are perfect for active lifestyles Glare guard lens coating helps to eliminate eye strain and fatigue Vented lenses prevent fogging with improved air circulation