Its not just a foam pad like you see in some jackets and suits. They are pretty thin, about pinky thickness. It is made from a hard material and makes a knocking sound when you rap it, but still flexible enough to bend and conform to your back.
Mik's # is 916-725-2936 if you have more questions on the material etc. I will give him a call and make sure on compatibility with other back protectors.
To get in on this pm me your
day and night phone #
Measurements following the form at the following link.
This will then be turned over to Mike and he'll look over the information, contact you for payment info and then begin to make and send out the templates for trial. If the templates are good then the protector will be made. If you have any questions give me a holler.