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.
- Add lenses
In Stock
- Progressive Eligible
- Sunglasses Eligible
- Plastic
- Spring Hinges
The Eris from Derek Cardigan checks off all the boxes. A low bridge fit, this rectangular d-frame in shiny ombré acetate features the brand's iconic mathematical symbols on the arm tips. A molded saddle bridge, contoured arms, and spring-hinged temples offer optimal wear.
Includes Free Shipping & Returns