This is not a medium width, as labeled by its maker. It is narrow. The length is true to size.
The sheepskin will stretch to fit almost any width, but if you have a medium-to-wider foot you have to kind of balance on the narrow, thick rubber sole. (The Cream color is gorgeous, and hard to find from other makers, so I might be willing to get used to that. YMMV.) Big points for quality; it's everything Ugg is reputed to be in that respect. However, they should label accurately for width sizing. And offer other widths besides narrow!