BEST SHOES EVER and I'm back to get another pair! I have dead to the floor flat feet and got PF in only one foot (go figure). However the PF is now nearly done after several months of wearing these. I've even gotten to the point where I will get up and walk around without them because the pain is sooo relieved. If you have PF, esp newly diagnosed you won't go  wrong with these. I'd had it for a little while - couple of months-- and upon putting these on and taking a step, I was floored I could walk normally again. I almost had to learn to re-walk since I had been limping. PF usually needs a multi treatment approach, but these should be on your list.