VATTER 2017 Best Christmas Gift Polarized Sports Sunglasses for Men 100% UV400 metal frame Composite lens polarized Lens width: 67 millimeters ALUMINUM-MAGNESIUM ALLOY FRAME-for mature and wise men design features, highlights men charm TAC POLARIZED LENS- 100% UV400 protection coating, block 100% harmful UVA & UVB Rays. Restore true color, eliminate reflected light and scattered light and protect eyes perfectly. ULTRA LIGHT FASHION DESIGN- for outdoor driving, sports, fishing, skiing, car racing, mountain climbing, boating, hiking travel and other outdoor activities lovers. TAC lens and Aluminum-magnesium alloy frames are impact, scratch resistant, durable and unbreakable. TAC lens includes 9 layers. The first layer is a surface layer of strengthening film. The second layer is to strengthen Polaroid. Layer 3 and Layer 4 is double UV400 protective film . Layer 5 is FVA polarizing filter membrane, 6th and 7th floor is a double UV400 protective film. Layer 8 is strengthen Polaroid, 9th floor is to strengthen the protective film layer compression. PRODUCTS DIMENSION- Lens width : 67mm; Lens height : 42 mm ; Bridge : 15 mm; Wide frame : 149mm; Arm : 128 mm.