I have tons of foot problems and have destroyed my ankles from sprains and rolling them over the years. Also, my posture hasn't been that great, perhaps from everything I've done to my feet. I put these shoes on in the store and my fiancee immediately said he's never seen me stand up so straight. I think it's impossible to hunch in these shoes. I now have perfect posture after owning these shoes for less than 48 hours. I can also walk comfortably for the first time in years. These shoes are AMAZING!!!! I am looking to buy the other styles as well. If they somehow put this technology in dress heels I'd never buy a different brand ever again.