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Puppy harness

Puppy harness: mistakes to avoid (and what to do instead)

A puppy's first harness sets the tone for future walks: comfort, leash training, and safety. Here are common mistakes to avoid and good habits to get off to a smooth start.

See our no-pull harnesses & leashes (puppies & young dogs)Size and measurement guide“No-pull” walk routine (15 min)


Summary

  1. Top 10 mistakes to avoid
  2. Choose & adjust: the simple method
  3. Getting the puppy used to the harness (3 sessions)
  4. First steps on a leash: 7-day routine
  5. FAQ

1) Top 10 mistakes to avoid

  1. Choosing “by eye” : rely on measurements (chest/neck) rather than weight alone.
  2. Too tight : chafing under the armpits. Golden rule: 2 fingers' ease under each strap.
  3. Too loose : risk of slipping backwards . Check by gently pulling on the back.
  4. Incorrect shape : prefer a Y-shaped harness (free shoulders) for learning.
  5. Attaching to the collar "for control" increases traction and cervical pressure. Use the harness .
  6. Put directly on a walk without habituation: start at home (see below).
  7. No positive reinforcement : each step = reward (treat/voice).
  8. Long outings from the start : opt for short, frequent sessions in a calm environment.
  9. No regular adjustments : a puppy grows quickly → weekly check-ups.
  10. Forget the proper leash : a cushioned anti-pull leash helps to channel enthusiasm.

See the category: anti-pull harnesses & leashes .


2) Choose & adjust: the simple method

Take action

  • Chest : just behind the elbows, at its widest point.
  • Neck : base of the neck, at its widest point (if threading over the head).

Between sizes? Sturdy/hairy puppy → size up (with some adjustment range). Very slim puppy → size down if there's a wide adjustment range.

Adjustment in 60 seconds

  1. Place the Y-junction in the center of the sternum.
  2. Adjust chest and belly (2 fingers' ease, no chafing).
  3. Test 10 steps: nothing rises towards the throat; the harness does not rotate.

Need an easy-to-adjust model? Check out our selection for puppies .


3) Getting the puppy used to the harness (3 sessions)

  1. Session 1 – Discovery (3–5 min) : Introduce the harness, treats on/near. Touch shoulders/chest, clip/unclip without the harness to make the noise.
  2. Session 2 – Positive fitting (5–7 min) : put on the harness, reward , let walk at home for 1–2 min, remove before he gets annoyed.
  3. Session 3 – Micro-walk (5–10 min) : quiet corridor/garden with leash ; reinforce eye contact, gentle half-turns.

Tip: combine a happy keyword (“harness!”) + treat. Objective = positive emotion.


4) First steps on a leash: 7-day routine

Day Exercise Duration
1 Indoor observation and monitoring (2m walk) 5 min
2 U-turns + reward for good timing 5–7 min
3 Very calm walk (landing/courtyard) • loose leash 8–10 min
4 Management of minor distractions (odor, noise) 10 min
5 Increase the distance slightly • controlled sniff breaks 12–15 min
6 Introduce a “stop”: motionless ➜ gaze ➜ go 10 min
7 Simple path; review difficult points 15 min

Useful accessories: anti-pull leash , treat pouch, clicker (if you use it).


Cheat-sheet: quick checklists

Before going out

  • ✅ Centered harness, 2 fingers' freedom of movement, no chafing areas.
  • ✅ Leash set (no clothesline, no continuous pulling).
  • ✅ Treats ready, calm before opening the door.

Back home

  • 🔁 Remove the harness calmly, final reward.
  • 🧼 Check for friction/stuck hairs, adjust as needed.
  • 📏 Re-measure every week (rapid growth!).

FAQ – Puppy Harness

At what age should a harness be used?
From the moment I arrived home, I was so well adjusted and positively associated . Very short sessions at the beginning.

My puppy is chewing on the leash:
Offer an alternative chew toy , and reward him as soon as he releases his chewing. Avoid pulling; calmly redirect him.

He's already firing:
Use a Y-harness + no-pull leash and follow our 15-minute routine .


Going further

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