Opinions on the Cambon flats please- Are they really comfortable, or not because of the lack of foot support? Do they have padding on the insole or are they pretty flat? Can you feel the ground through the bottom soles? Are the soles flexible or rigid? How does the sizing run? Does the leather get dirty/worn because of the way the bottom soles are (don't go all the way to the edges)? Does the sole hold up or are these better suited as an indoor slipper type shoe? Also, what is a size US 10 in them? 41? 42? Sorry for all the ?'s, I just wanted more info before paying so much for these and there is no way I can try them on so I need to make sure they would be the correct size. Are they are sale anywhere?? Thanks ladies!