



Petyoo Secure Harness Size Guide
Measure your dog’s neck and chest, then compare with the chart below.
How to Measure Your Dog
1
Neck
Measure around the base of your dog’s neck. Leave 2–3 cm of space for comfort.
2
Chest
Measure the widest part of the chest, just behind the front legs.
3
Between Sizes?
Choose the larger size for a safer and more comfortable fit.
Tip: Measurements may vary by 0.5–2 cm. For the best fit, always prioritize the chest measurement.