I usually wear 5 layers, but my record is 51 pair for heavy encasement, 21 layer for legs, 20 for uper body, 10 for head. I used lycra support pantyhose 40 and 70 DEN.
The feeling is amazing, tightness is very strong, 10 minutes is a pleasure but more is torture, I tried to sleep in these layers but endured only 2 hours
Wearing 21 layers takes a little more than 1 hour.
Unfortunately I do not have pictures, I did it at night, it's hard to take a picture yourself having 20 layers of the hands and 10 on the head.
I need to buy more pantyhose, then I am going to do with 30 layers ...