A harness labelled for your dog’s breed can sound reassuring, but breed alone won’t tell you whether it fits. Two dogs of the same breed can have different chest shapes and proportions. Start with your dog’s measurements, then compare them with the size chart for the particular harness you’re considering.
Measure your dog first
Check the maker’s instructions for where to measure. Most harness charts ask for a chest measurement around the widest part of the ribcage; some also ask for the neck. Use a flexible tape measure and record the numbers rather than choosing a size from the breed name alone.
Compare each harness’s own size chart
Size names aren’t universal. A medium in one design may fit differently from a medium in another. Compare your dog’s measurements with that product’s chart, and check which straps can be adjusted. If your dog falls between sizes, ask for the maker’s fit advice instead of guessing.
Check the fit when it arrives
Adjust the straps as directed by the maker. Check that the harness sits comfortably, doesn’t rub behind the legs, and allows your dog to move naturally. Keep an eye on the fit as your dog grows or changes shape.
Choose features for your walks
Think about what you and your dog need: easy-on fastenings, padding, a front or back lead attachment, or a handle. A front clip can be useful for some walking setups, but no harness alone replaces patient training or guarantees that a dog won’t pull.
Quick checklist: measure your dog, use the specific product’s chart, check adjustment points, and inspect the fit in person. If you’re unsure, ask us about the measurements and features before choosing.