Measure the circumference of your dog's neck and add an extra 2 centimetres to the result.

• XS: 22-26 cm (width 4 cm)

• S: 25-29 cm (width 4 cm)

• M: 29-33 cm (width 4 cm)

• L: 33-37 cm (width 5 cm)

• XL: 38-42 cm (width 5 cm)

If you are between two sizes, always go for the larger size.