Inexplicably subtle - silently bold. The Enigma is designed to be the upper echelon of eyewear. Created with tech even the most seasoned agent would find impressive: Enigma vision gaming and computer glasses feature multi-barrel hinges anchored into injected temples. It's balanced: has a wide field of view: and with its modern styling: deep cover will never be compromised. Quality Comfortable Frame Engineering grade frame polymers and 3-barrel hinge design provide dimensional stability and long-term durabilty: curved nose rests provide even weight distribution and eliminate pressure points Wide Format Lenses Wide format lenses create an unobstructed panoramic: high-resolution field of view Anti-Reflective Lens Dual-sided anti-reflective lens coating Gunnar UV Protection Gunnar's 100% UV protective coating shields the eyes from harmful ultraviolet rays Gunnar Blue Light Filter (GBLF) Gunnar's Blue Light Filter offers a tinted lens for optimal protection against harmful and distracting artificial blue light Enigma Specs Lens width 58 mm: nose 18 mm: temple 133 mm: frame width 135 mm: weight 33 grams