USD 
Canadian
Shape: Angular rectangular design. Best fits large faces with round or oval shapes
Bridge: Adjustable bridge with non-slip Rabalon nosepads for added comfort
Fit: (eye) 71, (bridge) 17, (temple) 116, 8-base curve
Finishing Treatment: High-gloss or matte finish
Material: High-grade grilamid frame is lightweight and durable
Hinge: Anti-corrosive pin 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.