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How to choose the right size?
A soft measuring tape, a patient hand, and three reference points. The right collar or harness should sit comfortably and let your companion move without a thought.
A ritual, not a guess.
Neck circumference.
Wrap a soft measuring tape around your pet neck. Measure at the widest point and leave a little room for comfortable movement.
Lower neck circumference.
Measure around the base of the neck, closer to the shoulders where the harness will rest.
Chest circumference.
Measure chest just behind the front legs at the widest point. This is the most important harness measurement.

Collar Sizes
| Size | Neck (A) | Width |
|---|---|---|
| XS | 6.3 - 7.5 in | 0.6 in |
| S | 7.1 - 9.1 in | 0.6 in |
| M | 9.1 - 11.4 in | 0.6 in |
| L | 11.8 - 13.0 in | 0.7 in |
Harness Sizes
| Size | Chest (C) | Width |
|---|---|---|
| XS | 11.4 - 13.0 in | 0.6 in |
| S | 14.2 - 15.7 in | 0.6 in |
| M | 15.4 - 16.9 in | 0.7 in |
| L | 16.9 - 19.3 in | 0.7 in |
Designed for miniature breeds.
Tesoro Collezione leashes are designed for miniature dog breeds weighing up to 7 kg (15.4 lbs). We carefully select hardware and materials to ensure safety and comfort specifically for these small pets.
If your companion sits above this weight, please reach out before ordering and we will confirm whether the piece is right for them.