The measurement is taken from the buckle to the first/smallest hole or from the buckle to the largest/last hole of the collar lying flat. Please note that the length and not the circumference is measured. Due to the thickness of the leather, 2-3 cm must be subtracted from the specified length when the collar is closed.
For example, if your dog's neck circumference is 32 cm, the collar should be at least 34 cm long when lying flat to the first hole (which corresponds to size S for us). If you have any questions about our sizes, our style advice or customer service team will be happy to help you.