The perfect outfit for any 'V.I.P' . . .  Very Important Pup.
 
Small - Back 23cm (9.1 inches), Neck 25cm (9.8 inches), Chest 36cm (14.2cm)
Medium - Back 30cm (11.8 inches), Neck 29cm (11.4 inches), Chest 44cm (17.3 inches)
Large - Back 36cm (14.2 inches), Neck 34cm (13.4 inches), Chest 47cm (18.5 inches)