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Collar or harness: which to choose for your dog's breed

Carlo Vera · 11 October 2026 · Leer en español

Carlo con un mastín

It's one of the questions I get asked most on walks around Girona: should I use a collar or a harness? The short answer is that it depends on the dog. There's no perfect option for everyone, but there are some very common mistakes you can avoid with a little information.

First things first: your dog's neck

Before you think about brands or colours, look at your dog's shape. There are three groups worth keeping in mind:

When a collar makes sense

A good quality collar is perfect for carrying an ID tag with their name and phone number, for wearing at home and for dogs that already walk calmly without pulling. What matters is the fit: you should be able to slide two fingers between the collar and the neck. Any more and it can slip off. Any less and it's too tight.

What I never recommend are choke, prong or electric collars. They work through discomfort or pain, and even if the dog stops pulling in the moment, they don't learn anything useful. They also often bring on fear or reactivity that wasn't there before.

H harness or Y harness

Not all harnesses are the same. Look at how the straps sit across the chest:

Whatever the style, check that it doesn't rub under the front legs, isn't loose, and that your dog can walk, run and sit normally.

Kit is no substitute for training

A good harness makes walks more comfortable, but it won't teach your dog to walk beside you. If they pull a lot, the answer is training, not tougher equipment. In this article I explain how to teach your dog to walk without pulling on the lead.

My advice

Many dogs end up using both: a light collar with their tag that stays on all the time, and a comfortable harness for longer walks. If you're not sure what suits yours best, drop me a message. I can meet your dog, measure them and recommend what they need, even if you don't buy anything from me.

Shall we talk about your dog?

Kind, respectful training, home boarding and handmade leather collars in Girona.

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About me

My story: why I started Alma Canina

Training

How to teach your dog to walk without pulling on the lead