D is our standard Womens width fitting. It will fit most people true to size although some shoes do feel different from others based on the toe shape. For example, Clara feels a bit roomier as she has a wider round toe, whereas Juno and Martha are a little more snug at the front as the toe tapers to more of a point.

E is used on our women's sneaker ranges and only on a few of our mens shoes.
It is pretty narrow. On a loafer, E fit is generally regarded as the standard fit because a loafer needs to be a little tighter than a lace up to make sure it doesn’t slip off the foot.
If your foot is average width or a little wider, this will either be too tight or you will have to go up in size.

F is a standard mans width, so if your foot is on the wide side, you might have to go up in size a bit. It fits the majority of men.

G is slightly wider than the standard mans last but most men fit it perfectly as its always better to be a little roomy than too tight. Both the G and the F fit will be fine for most men.