A matched harness and leash for small dogs and puppies, where the problem is rarely raw pulling power and usually that adult equipment simply does not fit.
Polyester with a soft padded chest panel, sizes XS through XL, four colourways, leash included.
Why small dogs need a harness more, not less
A toy breed on a flat collar is at real risk of tracheal damage, because a small dog lunging generates plenty of force against a very small windpipe. Collapsing trachea is common in several small breeds and a collar makes it worse. Put the leash on a harness and the collar carries identification only.
Fitting a puppy
Check the fit weekly. Puppies outgrow a harness faster than anyone expects, and one that fitted a month ago can be rubbing under the front legs now. Two fingers flat under every strap, and look for bald patches or pink skin behind the elbows as the sign it has become too tight.
For medium and large dogs, the No-Pull Training Harness is the better starting point.