Bertoni Photochromic Polarized Sunglasses TR90 Material Italy-P308FT Frame: flexible TR90 (Nylon + Carbon ) with memory of position - Color: mat titanium grey Photochromic polarized lensess from light grey to smoke - 100% UV protection Nosepad and tips made in extragripping Megol - the interchangeable lens can be replaced Weight: 19 grames - drop ball anticrash test certificated Sports sunglasses for cycling, golf, running, watersports, fishing, ski