MEASURING YOUR PET FOR A HARNESS
There are two measurements that need to be taken when sizing for a dog harness:
The Chest Measurement
Using a tape measure or string, measure the chest at its broadest point, (this is usually directly behind the front legs.)
The Neck Circumference
Measure the circumference of your pet’s neck as you would for a collar. Ensure that this is not tight, (you should be able to get two fingers behind the measuring tape) before noting the measurement.