Another Power Pants Problem

I’ve been having a problem with the back of my Power Pants sliding down. Do i just need to wear my belt tighter, or is there anything else i could do to fix this?

Make sure they are seated all the way up into the crotch.

The back of my briefs always slides down no matter how high I pull them up and I just readjust them between sets.

Thanks folks, i appreciate the help. They’re definately seated; i just feel like when they slip, I’m losing alot of support.