Hip thrusts go best with padding of some sort.
(My favorite solution is one thatsnotsold as a bar pad, but well get to that.)
But first, fix your positioning
Before we talk about padding, we have to talk positioning.
When you set up for hip thrusts, youll want the bar in the crease of your hip.
This is the ideal spot because it avoids each of those bony areas.
Youll want something with a fairly dense foam padding.
Something likethisthat comes with straps is a good pick; so isthis stylethat has a velcro flap.
Some gymgoers find these to be more comfortable.
But you might also get one that is justa plain old cushionby itself.
One of the best options is athick yoga mat, folded in half or into thirds.
Look for these in the stretching area, or anywhere people do exercises on the floor.