Alfie Pet by Petoga Couture - Gordon Jumper - Color: Black Size Medium best fits neck girth: 11.5", breast girth: 15", and body length: 11". Sizing for each dog is unique. We highly recommend you measure your pet precisely with a flexible tape measure to ensure the best fit. Contact us if you have question. We are happy to help. This jumper is made for comfort, style and will stay put. Faux Fur trim around hood for extra warmth and comfort. Great for every day walks and weekend party. Try one on your doggie today!