| Size | Neck | Width |
|---|
| S | 27.5–37 | 2.0 |
|---|
| M | 37–48 | 2.5 |
|---|
| L | 48–58.5 | 2.5 |
|---|
| XL | 58.5–68.5 | 2.5 |
|---|
All measurements in cm.
Measure around the middle of your dog's neck with a soft tape and choose the size where that number sits inside the range. Once buckled, two fingers should slide flat under the collar.
Breed guide: S – Jack Russell, Dachshund, Cavalier King Charles. M – Beagle, Cocker Spaniel, Border Collie. L – Labrador, Golden Retriever, Boxer. XL – German Shepherd, Bernese, Great Dane.
Between sizes? Take the larger size. Hand-measured; allow 1–2 cm.