Leash walking
How do I train my dog not to pull without using a harness?
Last updated 23 September 2026 · How we write and check this
Short answer
A flat collar or martingale collar works fine for training as long as your dog is not lunging hard enough to risk its neck, in which case a harness is genuinely safer. On a collar, use the same stop and reward approach: freeze when the leash tightens, reward loose leash positioning, and keep sessions short, around 10 minutes, so your dog stays engaged rather than tuning out.
When a collar alone is reasonable
A well fitted flat collar suits dogs that pull mildly and inconsistently rather than lunging their full body weight forward repeatedly. A martingale collar, which tightens slightly but cannot choke, is a good middle option for narrow headed breeds like Whippets or Greyhounds that can slip a standard collar.
Training method stays the same
Whatever the dog wears, the core method does not change: stop moving the second the leash tightens, and only move forward again once slack returns. Reward generously, roughly every 4 to 6 steps at first, for walking near your side, gradually stretching the gap between rewards as the habit forms over 2 to 3 weeks.
When to reconsider a harness anyway
If your dog coughs, gags, or wheezes when it hits the end of the leash, that is a sign the collar is placing real pressure on the trachea, and switching to a harness protects your dog's neck while training continues.
Key takeaways
- A flat or martingale collar is fine for training mild, inconsistent pulling.
- The stop and reward method works the same regardless of collar or harness choice.
- Reward loose leash walking every 4 to 6 steps early on, stretching the gap over 2 to 3 weeks.
- Coughing or gagging against the collar is a signal to switch to a harness for neck safety.