I am sure I saw a brand of ladies underwear that advertised that the compressive quailites would help with pelvic amd back pain and correct your lower posture.

DH is wearing the Underamor "shorts" at the moment to help with his thigh muscles, but also if he has bad chafing below. He wears them all day at work. I asked him if he felt "compressed" and he said no they are really comfortable.

I have worn slimming underwear all day and as long as they are not too tight and have some give, I find them fine.