Buying the harness, leash and collar as a matching set is how most of the walking photos you have seen were put together. It also solves a practical problem: three pieces bought separately rarely share the same hardware colour or webbing width.

What a set solves

• Consistent hardware. Matching buckles and clips, so nothing looks like an afterthought.
• Correct proportions. The lead weight is matched to the harness rather than overpowering it.
• One sizing decision instead of three, though you should still check each piece against your dog's measurements.

Sizing a set

Measure chest girth behind the front legs for the harness and neck circumference where the collar sits, allowing two fingers under each. Sets are usually sold by the harness size, so confirm the collar range covers your dog's neck before ordering.

Buying the pieces separately

If you want a specific style rather than a set, see harnesses, leashes and chain leads and collars. Designer-coordinated options are in the designer collection.

Frequently asked questions

Do sets come with all three pieces?

It varies. Check each product page, since some are harness plus leash only.

How do I size a matching set?

By chest girth for the harness, then confirm the collar range fits the neck. Two fingers under every strap.

Can I use the collar for walking?

Attach the lead to the harness for dogs that pull, small breeds and flat-faced dogs; keep the collar for ID.