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.
In Stock
- Progressive Eligible
- Sunglasses Eligible
- Plastic
- Spring Hinges
The Derek Cardigan Signal gives classic geek-chic style a sleek, modern upgrade. The glossy acetate D-frame tapers to a sharp wingtip, complementing tall foreheads, soft features, and round and oval-shaped faces. Its saddle bridge sits comfortably on narrow noses, while spring hinges ensure a flexible fit along the temple.
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