This is my fourth pair .  Needless to say I love the shoes.  Just to let you know the blue pair I just got were not exactly like my other ones.  The leather on the heels has been replaced with mesh.  Doesn't  seem to matter.  The soles are also different and the big M is no longer on the side.  I like the looks of the older ones but the comfort and function are the same.  Like wearing a glove on your foot.
 I will be buying another pair as soon as I make sure the new style wears as well as the old.