Dog Collar & Harness Size Chart by Breed
Dog Collar Size Chart
Neck measurement by collar style| Size | Regular Collars | Two-Tone Collars | Collar Width | Common Breeds |
|---|---|---|---|---|
| Small | 10 – 14" | 10 – 14" | ¾" | Maltese, Pomeranian, Toy Poodle, Yorkshire Terrier |
| Medium | 12 – 16" | 15 – 18" | ¾" | Boston Terrier, Dachshund, Jack Russell, Miniature Schnauzer, Pug |
| Large | 16 – 24" | 17 – 21.5" | 1" | Beagle, Border Collie, Cocker Spaniel, French Bulldog, Welsh Corgi |
| X-Large | 18 – 28" | 18 – 28" | 1" | Boxer, German Shepherd, Golden Retriever, Labrador Retriever |
* Measure around the widest part of your dog's neck where the collar naturally sits. Add 2 finger-widths for a comfortable fit.
* Two-tone collars are made with more than one colour of BioThane (like our Fig Hound collar) and are sized slightly differently. If you're ordering a two-tone design, use the Two-Tone Collars column.
* Breeds are a general guide only. Always go by your dog's neck measurement.
Tip: If your dog falls between two sizes, size up. All Hund & Shore collars are adjustable within each size range.
Step-In Harness Size Chart
By chest girth & breed| Size | Weight | Chest Girth | Strap Width | Common Breeds |
|---|---|---|---|---|
| X-Small | 7 to 10 lbs | 11 – 15.5" | ½" | Maltese, Pomeranian, Toy Poodle, Yorkshire Terrier |
| Small | 10 – 25 lbs | 16 – 22" | ¾" | Boston Terrier, Dachshund, Jack Russell, Miniature Schnauzer, Pug |
| Medium | 22 – 55 lbs | 20 – 28.5" | ¾" | Beagle, Border Collie, Cocker Spaniel, French Bulldog, Goldendoodle (medium), Welsh Corgi |
| Large | 55 – 75 lbs | 26 – 33" | ¾" | Boxer, German Shepherd, Golden Retriever, Goldendoodle (Standard), Labrador Retriever |
| X-Large | 75 lbs+ | 32 – 48" | 1" | Bernese Mountain Dog, Great Dane, Husky, Mastiff, Saint Bernard |
* Measure the widest circumference around your dog's chest to ensure the appropriate harness size.
* Ensure two fingers can fit under the harness between chest and straps for a proper fit.
Tip: When in doubt between two sizes, choose the larger for the best fit.
Barrel Harness Size Chart
By neck, chest girth & weight| Size | Neck | Chest Girth | Weight | Common Breeds |
|---|---|---|---|---|
| Small | 10 – 14" | 15 – 21" | 13 – 25 lbs | Miniature Schnauzer, French Bulldog, Shih Tzu, Pug, Dachshund |
| Medium | 12 – 16" | 20 – 29" | 26 – 55 lbs | Beagle, Corgi, Cocker Spaniel, Bulldog, Staffordshire Terrier, Basenji |
| Large | 16 – 24" | 26 – 38" | 55 – 70 lbs | Labrador, Golden Retriever, Border Collie, Weimaraner, Husky |
| X-Large | 18 – 28" | 36 – 48" | 75 lbs+ | Great Dane, Bernese Mountain Dog, Rottweiler, German Shepherd, Mastiff |
* Neck: measure the widest part of your dog's neck where the collar would naturally sit.
* Chest girth: measure around the largest part of your dog's chest, just behind the front legs.
Tip: The Barrel Harness is designed for deep-chested and stocky builds. If your dog's chest girth is near the top of a size range, size up for the best fit.
Size Guide by Breed
Typical adult neck & chest girth, A–Z| Breed | Typical Neck | Typical Chest Girth | Collar | Step-In Harness | Barrel Harness |
|---|---|---|---|---|---|
| Australian Shepherd | 16 – 20" | 26 – 32" | Large | Medium / Large | Large |
| Beagle | 13 – 17" | 20 – 26" | Medium / Large | Medium | Medium |
| Bernese Mountain Dog | 20 – 26" | 32 – 40" | X-Large | X-Large | X-Large |
| Bichon Frise | 10 – 14" | 15 – 19" | Small | X-Small / Small | Small |
| Border Collie | 15 – 19" | 24 – 30" | Large | Medium | Large |
| Boston Terrier | 12 – 16" | 18 – 24" | Medium | Small | Small |
| Boxer | 18 – 22" | 28 – 34" | X-Large | Large | Large |
| Cavalier King Charles Spaniel | 12 – 15" | 18 – 22" | Medium | Small | Small |
| Cocker Spaniel | 14 – 18" | 22 – 27" | Medium / Large | Medium | Medium |
| Dachshund (Standard) | 12 – 16" | 16 – 24" | Medium | Small | Small |
| Doberman | 18 – 24" | 30 – 36" | X-Large | Large / X-Large | Large |
| French Bulldog | 13 – 18" | 20 – 26" | Large | Medium | Small / Medium |
| German Shepherd | 18 – 24" | 30 – 36" | X-Large | Large / X-Large | Large / X-Large |
| Golden Retriever | 16 – 24" | 28 – 34" | X-Large | Large | Large |
| Goldendoodle (Mini) | 12 – 16" | 18 – 24" | Medium | Small | Small |
| Goldendoodle (Medium) | 14 – 18" | 22 – 28" | Medium / Large | Medium | Medium |
| Goldendoodle (Standard) | 16 – 22" | 26 – 32" | Large | Large | Large |
| Great Dane | 22 – 28" | 36 – 44" | X-Large | X-Large | X-Large |
| Havanese | 10 – 13" | 15 – 19" | Small | X-Small / Small | Small |
| Husky | 16 – 20" | 24 – 30" | Large | Medium / Large | Large |
| Jack Russell Terrier | 11 – 15" | 16 – 20" | Medium | Small | Small |
| Labrador Retriever | 17 – 23" | 28 – 36" | X-Large | Large | Large |
| Maltese | 8 – 12" | 12 – 16" | Small | X-Small | — |
| Miniature Poodle | 10 – 14" | 16 – 20" | Small | Small | Small |
| Miniature Schnauzer | 12 – 16" | 18 – 23" | Medium | Small | Small |
| Pomeranian | 8 – 12" | 12 – 16" | Small | X-Small | — |
| Pug | 13 – 17" | 18 – 24" | Medium | Small | Small |
| Rottweiler | 20 – 26" | 32 – 40" | X-Large | X-Large | X-Large |
| Shih Tzu | 11 – 15" | 16 – 21" | Small / Medium | Small | Small |
| Staffordshire Bull Terrier | 15 – 19" | 22 – 28" | Large | Medium | Medium |
| Standard Poodle | 15 – 20" | 24 – 30" | Large | Medium / Large | Large |
| Toy Poodle | 8 – 11" | 12 – 15" | Small | X-Small | — |
| Vizsla | 15 – 20" | 26 – 32" | Large | Large | Large |
| Weimaraner | 16 – 21" | 28 – 34" | Large | Large | Large |
| Welsh Corgi (Pembroke) | 14 – 18" | 22 – 28" | Large | Medium | Medium |
| Yorkshire Terrier | 8 – 11" | 12 – 15" | Small | X-Small | — |
* Typical ranges for adult dogs. Every pup is built a little differently, so always go by your own dog's measurements.
* Two sizes listed? Your dog sits where they overlap. Measure, then pick the size where your number lands closer to the middle.
* Neck under 10"? Our smallest collars start at 10". Reach out about a custom fit.