Finished to exacting specifications and machine polished with high-velocity micro particulates, the engineering behind PHENOM is only outdone by one thing... its artistic style. Micro-engineered lens locks add both flexibility and flair. KEY FEATURES Soft thermoplastic rubber tipped temples Aluminum-magnesium frame construction Hidden spring hinges Lightweight construction Proper weight balance Micro-engineered lens locks Adjustable floating nose pads Proprietary patented GUNNAR lens material and tint Blocks harmful blue light and 100% UV light Anti-reflective lens coatings on front and back of lens Silicone hard coated lens to prevent scratching Asian Fit Compatible Prescription Range: -7 to +4 SPECS: lens width: 55 mm | lens height: 31 mm | nose: 18 mm | frame width: 135 mm | temple: 134 mm | weight: 21 grams (without packaging) INCLUDED WITH PURCHASE Microfiber Pouch Microfiber Cleaning Cloth 24-month Warranty Â