I bought a pair of the shoes thinking it would help me tone up. well I was completely wrong! after wearing the shoes for 4 days I tragically broke my ankle in 2 places. They are dangerous and they did not help me the way the product says it would help me. because of this horrible product I lost my job, I had to have major surgery and now my life has been compromised. I am extremely furious that I have to live off of my parents and I'm a 25 year old woman. I'm not the type of person to complain about a product unless it has affected my life in a huge way. do not buy these shoes unless you want to break your ankle.