SIZE INFORMATIONS?? S--- Chest Girth: 13"-16" ; Back Length: 11.5" ?Recommended weight 4-9 lb? M--- Chest Girth:16"-20" ; Back Length: 13.8??Recommended weight 9-20 lb? L--- Chest Girth: 20"-25"; Back Length: 16.2"?Recommended weight 20-33 lb? XL--- Chest Girth: 23"-28"?Back Length: 18.9"?Recommended weight 33-50 lb?2XL--- Chest Girth: 28"-35"; Back Length:22.1"?Recommended weight 50-66 lbSuitable for Chocolate Lab black lab pup border collie puppy hound bulldog Boston Terrier husky Blue Heeler petite corgi Australian German Shepherd mini poodle frenchie schnauzer golden retriever bichon mix pitbulls Yorkie miniature wirehaired dachshund Labradoodle Newfoundland jack Russell spaniel Chihuahua pug French Bulldog Chiwenie Shih Tsu Havanese greyhound Bichon Frise.Please do measure your dog Chest Girth and Back Length and refer to the size chart before your purchase to get the most accurate size.(Manual measurement, so please allow an error of 0.39?-1.18?.)If your dog is between sizes, choose the larger size.We design the style and size of this recovery suit according to the general data collected, and we know clearly that each dog is unique, has its own body shape, bushy or thin, long or short, so not every dog can choose a perfect size. Thanks for your understanding. Great Dog Recovery Suit for Abdominal Wounds or Back Wounds, Professional Recovery Shirt for Male Female Pup After Surgery, Soft Surgical Wear for Puppy Spay Neuter, Pet Onesie, E-Collar & Cone Alternative.Designed to protect Pet's Wounds/ spots/incision, Bandages, Hotspots, Skin herpes when he or she is spayed/ neutered or has an allergy flare up, and to keep pet calm & basically stress-free;Full cover Surgical Snuggly for unisex dogs/cats;