I wouldn’t bother with a suit - the waist trainer and always wearing a snug belt makes more sense to me. And duct tape is actually a for real thing. I know a Masters Pro strongman who always lifts with a cotton ball and duct tape on over his herniated belly button. Many strongmen wear a Rehband soft/warming neoprene belt and then a hard power belt outside of that. Powerlifting doesn’t allow this, but if they did I would definitely do it for the squat. It provides a lot of the layered support of a suit under the belt without messing up your leg mobility or having to be in a god-awful suit.
Use one of these or similar, and put your belt over it directly over where your hernia is:
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Also, try to train like a pro bodybuilder. I don’t want to say like a pussy, but if you can make it easier, seated, more isolated, lighter and just focus on total volume with lower rests, you can build a terrific beach physique and avoid injury. Chase the pump and push pain thresholds with methods like loaded stretching, giant & dropsets on isolations, etc. You can build great anterior muscles doing lots of isolations and machine type or seated movement. You will still be stronger than any non-lifter and look better than a stronger athlete anyway.
Strength and bodybuilding only really overlap so much.
Fouad Abiad said he could bench 500 like a bodybuilder, but I can out-deadlift him any day of the week. Our squat for reps is nearly identical. Do you wanna look like me, or Fouad “Hoss” Abiad?? I know who I’d rather look like!