Collar or harness? This question constantly arises when preparing a dog’s walking equipment.
And yet, looking for which of the two is “the best” is probably not the right question.
A collar and a harness do not distribute forces in the same place and do not meet exactly the same needs. The choice therefore depends on the dog, their build, their leash behavior, their health status, and the activity being practiced.
Rather than systematically pitting the two against each other, let’s look at what they actually do.
The collar: simple, light, and practical
The collar remains probably the most common piece of equipment.
It allows, among other things, for an identification tag to be worn and offers a simple attachment point for the leash.
For a dog that walks with a loose leash, a properly adjusted flat collar can be very practical.
The problem arises especially when significant tension is applied to the leash.
When a dog pulls, lunges suddenly, or reaches the end of the leash, the force is applied to a relatively small area: their neck.
The pressure exerted on the neck increases with the applied forces. Choosing a collar therefore does not eliminate the constraints linked to strong leash tension.
When the dog pulls, the problem changes
Let’s imagine a dog walking calmly beside their human.
The leash is slack and the collar exerts very little strain.
Now, let’s imagine the same dog spotting another dog and suddenly darting forward.
The leash goes taut.
With a collar, the deceleration is transmitted to the cervical area.
With a harness, this force is distributed over a different and larger surface of the body.
This is a fundamental difference.
The harness avoids concentrating traction on the neck
One of the main advantages of the harness is that it moves the point of application of force from the neck to the chest.
This can be particularly interesting for a dog that regularly exerts strong tension on their leash.
This does not, however, mean:
harness = no risk.
A harness also exerts pressure and can alter the dog’s movements.
Its benefit depends heavily on its design and fit.
A poorly chosen harness can also bother the dog
Harnesses come in many different shapes.
Some straps pass in front of the chest, others between the front legs, some go up near the neck, and others wrap more around the thorax.
Different models can alter the range of certain movements, particularly at the shoulders and front limbs.
We must therefore avoid the shortcut of considering one shape to be perfect for all dogs.
The choice must be individualized.
And for shepherd-type dogs?
This is a good example of the importance of morphology.
A German Shepherd, a Beauceron, a Malinois, a Border Collie, or a White Swiss Shepherd do not have exactly the same chest or the same proportions.
Even between two dogs of the same breed, the build can vary.
A harness whose cross-strap falls perfectly on one dog might be very poorly positioned on another.
This is why it is more relevant to observe the dog wearing the harness than to assume that one model is suitable for an entire breed.
In what cases should the harness be favored?
The harness can be particularly interesting when you want to avoid concentrating tension on the neck.
It can also provide more control over certain dogs or be used for specific activities.
For a dog that pulls hard, it avoids having every bit of leash tension applied directly to the cervical region.
But be careful: putting a harness on a dog does not teach them how to walk on a leash.
The equipment manages physical constraint.
Training remains a different task.
And in what cases should the collar be used?
A properly adjusted flat collar can be perfectly suitable for a dog that moves with a loose leash.
It also remains very practical for carrying identification tags.
Some owners actually use both:
collar for identification + harness for attaching the leash.
It is therefore not necessary to permanently choose one camp.
Checking the equipment on the dog
Whatever equipment you choose, observe your dog when they walk.
Look in particular at:
- if the straps chafe behind the front legs;
- if the equipment rotates;
- if the dog visibly alters their movements;
- if a strap compresses the throat;
- if redness or hair loss appears;
- if the dog can back out and get out of their equipment.
Equipment that is perfectly suited to a mannequin can become very bad once placed on a real dog.
To remember
Collars and harnesses each have their uses.
The collar is light and practical when the leash remains loose.
The harness allows traction forces not to be concentrated on the neck, but its shape and adjustment must be adapted to the dog.
The real question is therefore not:
“Collar or harness: which is the best?”
but rather:
“Where will the forces be exerted, how does my dog move with this equipment, and is it adapted to the use I am making of it?”