Features Curvature 6 Base Curvature Frame Material Metal Alloy Lens Material PolycarbonateExtra Tech 100% UV Protection Stainless Steel Optical Hinges Silicone Nosepads Frame Measurements (mm) 59-14-48-135Curvature
6 Base Curvature - The base curvature corresponds to the curve of the lens. The higher the number, the higher the curve. 6 base styles have a “flatter” look. 8-9 base curves hug closer to the face. Frame Material
Metal Alloy - Each signature frame features optical quality nickel silver metal alloy construction for strength, durability and a lightweight fit. Each frame is hand soldered and fitted with stainless steel, optical quality multi-barrel hinges, silicone nose pads and shapeable temples to allow for a custom fit. Lens Material
Polycarbonate - UV400 protection lurks beneath the dark exterior of these lenses. Their polycarbonate lenses are distortion-free, optically correct and have maximum scratch and shatter resistance. These lenses are available in grey, bronze, fashion gradients and chrome coatings. Extra Tech
100% UV Protection - To protect your eyes from those harmful rays these lenses feature 100% UV protection. Frame Measurements (mm)
These measurements include the width of the lens, the width of the bridge, the height of the lens and the length of the arms measured in millimeters.
For example, a 56-17-45-144 frame:
1) Lens Width - 56mm
2) Bridge Width - 17mm
3) Lens Height - 45mm
4) Arm Length - 144mm 59-14-48-135