We recommend you measure your dog from the base of the neck to the base of the tail.
Note You will need to re-apply wax after washing
Extra Small - 20cm-26cm (8-10") Fits Yorkshire Terrier or Chihuaha
Small - 26-36cm (10-14") Fits Jack Russell or Border Terrier
Medium - 36cm - 46cm (14-18") Fits West Highland Terrier or Cavalier King Charles Spaniel
Large - 46-56cm (18-22") Fits Springer Spaniel, Beagle
Extra Large - 56cm-66cm (22-26") Fits Weimaraner, Setter