| Recommended sizing by breed: XX-Small: Teacup and dogs under 5 lbs X-Small: Australian Terrier, Chihuahua, Pomeranian, Toy Poodle, Yorkshire Terrier Small: Boston Terrier, Jack Russell Terrier, Maltese, Pug, Silky Terrier Medium: Bichon Frise, Beagle, Cocker Spaniel, Corgi, Scottish Terrier Large: Brittany Spaniel, Bulldog, Collie, Schnauzer, Springer Spaniel X-Large: Doberman Pinscher, German Shepherd, Golden Retriever, Labrador Retriever, Rottweiler XX-Large: Irish Wolfhound, Great Dane, Mastiff, Newfoundland, St. Bernard
| Size | Fits Length | Fits Necks | Fits Chests | | X-Small | Up to 8" | 8"-10" | 10"-13" | | Small | 8"-12" | 10"-11 1/2" | 13"-15" | | Medium | 12"-16" | 11 1/2"-14" | 15"-20" | | Large | 16"-20" | 14"-17" | 20"-25" | | X-Large | 20"-24" | 17"-21" | 25"-29" | |
