A.R.C. Progress: Personal Restraint System Leotard (Patreon)

the "under" garment to the harness.  The harness is still bonded to the garment, I just shoed them separately here.  The leg cuffs are, of course, not bonded and only attach via the buckles.

This features Nanozipper technology; the briefs can be detached as can their codpeice.
To convert this into a straitjacket, longer sleeves attach to the short sleeves shown here, also via nanozipper.