You can find measurement A/B/C printed on the inside of the temple arm or on the nose pads.
If you already have a pair of glasses that you like, you can compare measurements to see how a certain style of ours will fit you.

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The season’s signature style – these statement eyeglasses are a prime example of Carrera’s bold aesthetic. The full-rim aviator frames are crafted from a mix of acetate and metal for a modern contrast and emboldened with distinctive, seasonal details: the double bridge with a sleek metal top bar and a touch of Carrera’s brand-new ‘grid’ texture along the arms. The result is equal parts elegant and effortless, not to mention undeniably cool.
Full-rim aviator eyeglasses
Acetate front and polyamide-injected temples in a matte-black finish
Logo lettering along both arms
Flex hinges amp up the comfort factor
Molded nose pads
Come in a complimentary storage case