Frame size is determined by the three key measurements found inside the frame arm: lens width (from 31-60mm), bridge width (from 12-31mm), and arm length (from 115-155mm).
Lens height is essential for multifocal prescriptions, such as Progressives, which require a minimum measurement of 28-30mm. They are also recommended for Rx sunglasses.
- Progressive Eligible
- Sunglasses Eligible
- Metal
- Nose Pads
- Spring Hinges
Designed for endurance, the Forge eyeglass design boasts a thin, durable metal frame construction, complemented by acetate-on-metal for the arms. Most flattering on medium faces with softly curved features, the adjustable silicone nosepads and spring hinged arms offer maximum flexibility and fit, featuring the signature Derek Cardigan mathematical symbols on the inner arm tips.
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