On frames
The model code is composed by the first 2 letters + 4 digits (e.g: RB3183) imprinted inside the left temple of a standard frame.
On the website
The model code is reported in any product detail page. It is composed by the first 2 letters + 4 digits (e.g: RB3183) of the code displayed in the image above.
*having 29% bio-based carbon content
**having 57% bio-based carbon content
***having 40% bio-based carbon content