The question that few really ask themselves
Collar or harness?
For decades, the collar has been the standard choice. Tradition, habit, convenience.
Today, veterinarians and dog trainers are almost unanimous:
- Harness for most dogs.
- Collar only for identification (ID tag).
Reason: the collar can cause significant anatomical damage.
Let’s see the truth.
The collar: the anatomical truth
What happens with a collar when the dog pulls
The collar presses on:
- Trachea.
- Neck vessels.
- Cervical lymph nodes.
- Thyroid.
- Cervical vertebrae.
Concentrated pressure on a small area = damage.
The documented risks
Tracheal collapse:
- Chronic pressure deforms the trachea.
- “Goose honk” cough.
- Chronic respiratory issues.
Cervical damage:
- Stressed vertebrae.
- Herniated cervical discs.
- Pain.
Ocular problems:
- Pressure on neck vessels.
- Increased eye pressure.
- Glaucoma.
Thyroid issues:
- Pressured thyroid.
- Possible hypothyroidism.
Study from the University of Glasgow (2014):
- Dogs with traditional collars have a significantly increased risk of cervical and tracheal problems.
Breeds at highest risk
Brachycephalic breeds
- Yorkshire Terrier.
- Chihuahua.
- Pomeranian.
- Pug.
- French Bulldog.
- English Bulldog.
Small trachea or brachycephaly = easy collapse.
Cervical risk breeds
- Dachshunds (long body).
- Toy breeds in general.
Pulling dogs
Any breed that pulls on the leash:
- Constant pressure.
- Cumulative damage.
The harness: what makes the difference
How it works
The harness distributes the force on:
- Chest (wide, sturdy).
- Shoulders.
- Sternum.
No pressure on:
- Trachea.
- Neck vessels.
Safety if the dog pulls:
- Force distributed.
- No strangulation.
The "good" harnesses
- Y or H harness:
- Specific shape.
- Allows natural shoulder movement.
- Doesn’t restrict limbs. - Padded harness:
- Additional comfort. - Front-clip harness:
- Helps manage pulling dogs.
The "bad" harnesses
- ❌ Tight “step-in” harness:
- Restricts shoulder movement.
- Compromises gait. - ❌ High-cut harness:
- Under the armpits.
- Chafes, irritates. - ❌ "Decorative" thin harness:
- Insufficient for control.
The harness choice
Main types
- Type 1: Y-shaped:
- Harness closes like a “Y” in front.
- Doesn’t block shoulder joint.
- Recommended. - Type 2: H-shaped:
- 2 parallel straps.
- Balanced.
- Recommended. - Type 3: "Step-in":
- Dog steps in like pants.
- Comfortable to wear.
- Only if the fit is correct. - Type 4: "Anti-pull" (with front clip):
- Helps redirect when dog pulls.
- Useful for training. - Type 5: "Car" (crash-tested):
- For safe transport in the car.
- Padded.
- Certified.
Materials
- Nylon:
- Durable.
- Economical.
- Dries quickly. - Quilted fabric:
- More comfortable.
- Premium. - Leather:
- Aesthetic.
- More expensive.
- Maintenance.
Measurements
Important to measure the dog:
- Chest: maximum circumference behind the front legs.
- Neck: base of the neck.
Adjust according to growth (puppies) or weight changes.
**Never tight**:
- 2 fingers should pass easily.
When the collar is okay
For identification
ID tag with:
- Dog’s name.
- Your number.
- Possibly address.
Even if the dog uses a harness for walks, a lightweight collar for identification is okay.
Important:
- Collar lightweight.
- Not used for pulling.
- Removed at home if the dog prefers it.
For dogs that DO NOT pull
Perfectly trained dogs to “not pull”:
- Lightweight collar acceptable.
- No chronic pressure.
The controversial "training collars"
Choke collar
What it does:
- Tightens if the dog pulls.
- “Teaches” not to pull through discomfort.
Modern veterinary position:
- Not recommended.
- Positive methods are more effective.
- Significant anatomical risks.
Prong collar
What it does:
- Prongs press on neck.
Position:
- Banned in many countries (Switzerland, Germany).
- Cruel.
- Ineffective in the long term.
Electric collar
Veterinary position:
- Strongly not recommended.
- Causes stress, anxiety.
- Risk of negative behaviors.
The transition from collar to harness
For a collar-trained dog
- Step 1: show harness, reward.
- Step 2: wear harness at home, reward. 5 minutes.
- Step 3: increase time at home, then to the garden.
- Step 4: short walk with harness.
- Step 5: complete routine.
Time: 1-2 weeks.
For puppies
Harness right away:
- No bad habits.
The prices
Cheap harness: 10-20 €.
Quality harness: 25-60 €.
Premium harness (Ruffwear, Hurtta): 60-150 €.
Simple collar: 5-15 €.
Total investment for walking:
- Harness + leash + collar with ID tag = 50-100 €.
Recommended products
Top harness brands:
- Ruffwear:
- Premium.
- Suitable for dog sports.
- 80-150 €. - Hurtta:
- Finnish.
- Durable.
- 50-100 €. - EzyDog:
- Practical.
- Anti-pull.
- 40-80 €. - Trixie:
- Economical.
- Good quality/price.
- 20-50 €. - Italian:
- Ferplast.
- Camon.
The leash
Ideal length:
- 1.5-2 meters for normal walks.
Materials:
- Nylon: durable.
- Leather: aesthetic.
Types:
- Fixed: standard.
- Long (5-10 m): for training.
- Retractable (flexi): not recommended by trainers (dog develops bad habits).
Signs that the collar is causing damage
Symptoms:
- Coughing during walks.
- Breathing difficulties.
- "Hoarse" voice.
- Reluctance to walk.
Visit the veterinarian if persistent.
Breeds and specific collar/harness
Brachycephalic dogs (French Bulldog, Pug, Bulldog)
Harness required:
- Airway already compromised.
- Never a collar.
Small breeds
Harness always:
- Fragile trachea.
Strong large breeds
Anti-pull harness:
- Better control.
Dachshunds
Harness (Y shape):
- Never pressure on the long back.
Myths to debunk
- Myth 1: "Collar is tradition, it's fine".
False: real anatomical risk. - Myth 2: "Harness teaches to pull".
False: training is separate. - Myth 3: "Harness doesn't control strong dog".
False: anti-pull harness is effective. - Myth 4: "Dog is used to the collar".
Partially true: still causing damage. - Myth 5: "Harness is uncomfortable".
False: correct harness is comfortable.
The truth
For the majority of dogs:
✅ Harness for walking.
✅ Collar only for ID tag.
✅ Initial investment: 50-100 €.
Benefit:
- Protected trachea.
- Healthy cervical.
- Preserved lifespan.
If you have a dog that has been using a collar for years:
- Switch to harness.
- Invest 30 €.
- Save its trachea.
If you are a new owner:
- Harness from the start.
- Puppy adjusted.
And remember: pulling on the leash is taught not to do, not to “tolerate with pain”. Educating > restraining. The harness allows effective, safe, respectful education.
Harness always. Collar for identification. Health first.
```