The Knoxville XL offers more coverage and a larger look while maintaining clean, classic lines and uncompromised fit.
Optical measurements are in millimeters and are as follows: lens width (56mm), bridge (17mm), and temple length (135mm.)
The frame measurements are listed below by height (H), width (W), and length (L) in millimeters. This is a better way to determine size if you don't already have another frame with measurements to compare.
| KNOXVILLE | KNOXVILLE XL | |
| WIDTH | 139mm | 144mm |
| HEIGHT | 47mm | 50mm |
| LENGTH | 140mm | 141mm |
