USD 
Canadian
Shape: Refined rectangular shape with traditional frame style. Complements oval or heart/triangle face shapes ; Best fits medium face sizes
Bridge: Saddle-style bridge with adjustable nosepads
Fit: (eye) 58, (bridge) 17, (temple) 135, 6-base curve
Finishing Treatment: High-gloss finish
Material: Monel metal, an extremely strong, corrosion-resistant alloy; with injected nylon temples
Hinge: Anti-corrosive traditional hinge
Neutral Grey:
Bright, direct sunPerfect for especially bright, direct sunlight. Offers rich color and contrast along with the highest available light reduction, unlike ordinary grey lenses that flatten light evenly across the spectrum.