Fit and fabulous?

I've heard about those shoes that are supposed to exercise your legs or something while you walk. Or maybe it was something about making walking super easy... I can't remember but the thing I do remember is that they were hideous... I mean aaaawful... really! But then I just saw this FitFlop by Anna Sui over on Net a Porter and I didn't even know it was that... that thing... in disguise... and I love it! How cool would these be with a pair of chocolate brown cozy tights and a wonderful dreamy autumn dress, a wool coat and a knitted hat? I'd be happy!