Gooby Comfort X Head-In Harness size chart (in & cm)
Gooby publishes 4 sizes for the Comfort X Head-In Harness, sized by chest girth (widest part of torso). The chart runs from 11.75 to 28 in30 to 71 cm.
Source: Gooby official size chart, checked Nov 4, 2026. Read from the maker's own chart image on that page.
The full Gooby Comfort X Head-In Harness chart
Exactly as Gooby publishes it. Use the in / cm toggle at the top of the page.
| Size | Chest girth |
|---|---|
| S | 11.75–15.5 in30–39 cm |
| M | 14.25–18.75 in36–47.5 cm |
| L | 17–22.5 in43–57 cm |
| XL | 20.5–28 in52–71 cm |
- Gooby prints in + cm (both printed).
- Gooby prints both units; both are shown exactly as published.
- Read from the maker's own size-chart image on its website.
Note: Read from the maker's chart image. goobypet.com product pages returned HTTP 403 to direct requests; the size-chart page loaded. Maker: between sizes, size up; sizing differs across Gooby products.
If your dog is between two sizes
Gooby publishes advice for this, so use theirs rather than a rule of thumb:
“between sizes, size up”
Source: Gooby, Comfort X Head-In Harness, checked Nov 4, 2026.
This site treats a measurement within 1 in of the edge of a size, or inside two sizes at once, as between sizes, and shows both. Work it out with the harness calculator, or read how to measure your dog.
Popular breeds on the Gooby Comfort X Head-In Harness chart
10 of the most popular breeds that have a published chest girth, mapped onto this chart. Only 57 of 127 breed records have a girth at all, so this is a sample, not a ranking. A breed range is a range: two dogs of the same breed can land in different sizes, so measure your dog.
| Breed | Typical chest girth | Size on this chart | How it was worked out |
|---|---|---|---|
| French Bulldog | 20–26 in50.8–66 cm | L or XL | by chest girth |
| Labrador Retriever | 28–36 in71.1–91.4 cm | XL | by chest girth |
| Golden Retriever | 28–34 in71.1–86.4 cm | XL | by chest girth |
| Dachshund (Standard) | 16–24 in40.6–61 cm | M to XL (3 sizes)Measure your dog’s chest to pick one. | by chest girth |
| Poodle (Standard) | 24–30 in61–76.2 cm | XL | by chest girth |
| Beagle | 20–26 in50.8–66 cm | L or XL | by chest girth |
| Cavalier King Charles Spaniel | 18–22 in45.7–55.9 cm | M to XL (3 sizes)Measure your dog’s chest to pick one. | by chest girth |
| Yorkshire Terrier | 12–15 in30.5–38.1 cm | S or M | by chest girth |
| Australian Shepherd | 26–32 in66–81.3 cm | XL | by chest girth |
| Pembroke Welsh Corgi | 22–28 in55.9–71.1 cm | L or XL | by chest girth |
Where a breed’s published girth reaches across three or more sizes, the first and last are shown with the count. This site will not pick one of them for you.
- Breed heights and weights: AKC breed pages, checked Nov 4, 2026.
- Girth: Hund & Shore, "Dog Collar & Harness Size Chart by Breed"
How to measure for this harness
Gooby sizes this harness by chest girth (widest part of torso).
Run a soft tape around the widest part of the rib cage, just behind the front legs, and keep it snug but not tight. Two fingers should slide under it. Measure twice: a tape that has slipped an inch is the single most common reason a size is wrong.
A number off this chart is where to start, not a fitting. Measure your dog and check Gooby’s own current chart before you buy.
Gooby Comfort X Head-In Harness
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Sizes here come from the maker’s own chart, not from any retailer.
Nearest harness charts
Charts that cover a similar range, if this one is too small or too large for your dog.
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