Gamma Ray Stealth Polarized UV400 Flat Black Updated Square Classic Sunglasses in Shatterproof Nylon Frame nylon frame nylon lens polarized Lens width: 57 millimeters TAC Polarized -100% UV400 protection lenses guards against harmful UVA & UVB rays. Multiple lens layer technology enables polarization, durability, UV protection and shatterproof features Frame Specs-Flat matte color frames with mirror lens options. Lens width 57mm, bridge width 18mm, temple arm length 136mm Updated Square Classic Design Perfect for Leisure or Active Lifestyle Satisfaction Guaranteed -Enjoy hassle free return or exchange on your sunglasses for any reason within 90 days Help us spread the word and enjoy your new pair of Gamma Rays as they are protected from manufacturer's defects for 2 full years from the date of purchase