Rex Specs
Size guide for dogs
How to measure for glasses
-
Head circumference
Measure the circumference of your head where the glasses should sit on your forehead – usually a couple of cm behind your eyes. -
Muzzle circumference
Measure the circumference of your dog's muzzle where the glasses will sit on the nose – usually around the back of the mouth.
| Head (cm) | Snout (cm) | Size |
|---|---|---|
| 21.6 - 26.7 | 10.2 - 15.2 | Extra small (XS) |
| 26.7 - 30.5 | 15.2 - 20.3 | Small (S) |
| 30.5 - 35.6 | 20.3 - 22.9 | Medium (M) |
| 35.6 - 44.5 | 22.9 - 29.2 | Large (L) |
| 44.5 - 58.4 | 29.2 - 35.6 | Extra large (XL) |
| 30.5 - 38.1 | 15.2 - 22.9 | *Small-wide (SW) |
*Small-wide (SW) is designed for dogs with short muzzles, such as French bulldogs or Boston terriers.
Do you have questions about size?
*Every breed is different and some sizes may be better suited to certain breeds. If you have any questions, please contact customer service.
