This is an example of the Commando, in the Natural, the same harness is sewn on the inside of the waistband for this Natural style

looking into the boxers

On the mannequin. The harness is sewn on the inside of the waistband, and can be secured or not right above the C ring to prevent the packer from moving left or right

looking into the boxers
harness on outside-Commando
Example of how it is sewn