0 and that?s the size I had in my previous pr from Isotoner a few yrs ago. it was so breathtaking and amazing! The bottoms arent super hard so ok when walking. I had intended to sand the unit and put a very light wash on so it would blend with other pieces in the room. Der interne Akku hält locker einen ganzen Arbeitstag durch (8 Stunden Schulung am Stück, danach waren noch 60% Akkuladung übrig). It definitely wobbles more than Id like but its to be expected at this price point. We will see when that time comes. Im a large guy, but carry it well. Would be a great size for a young lady unless you prefer dainty earrings. These are the most comfortable shoes I have ever purchased.