How to measure
Run a tape measure around the base of the neck, where a collar naturally sits. Leave room for two fingers between the tape and the coat. That figure is your size.
Sizes
- XS — 28–40cm · small terriers, dachshunds, toy breeds
- S — 34–42cm · cockers, beagles, small spaniels
- M — 40–48cm · border collies, springers, whippets
- L — 45–52cm · labradors, boxers, retrievers
- XL — 52–60cm · german shepherds, ridgebacks, large crossbreeds
Between two sizes?
Go up. The collar adjusts down but not out.
Got it wrong?
Email hello@obsidiapets.com and we'll swap it. Breed guides are a starting point, not a promise — dogs vary.