A US 10 tells us something. It does not tell us everything. Width, instep volume, heel shape, toe shape and left-to-right differences can all change how the same numbered size feels.

Shoe sizing is useful because it gives the industry a common starting point. The problem begins when the starting point is treated as a full description of the foot.

Length is only one dimension

Two people can have the same heel-to-toe length and need very different shoes. One may have a broad forefoot and narrow heel. Another may have a high instep. One may carry more volume through the midfoot. Toe shapes differ.

That is why a shoe can feel tight even when the length is correct, or loose even when the number printed inside is the size you normally wear.

Width letters are helpful, but still simplified

D, E, EE and similar width systems describe a range, not the complete geometry of the foot. Width at the ball does not tell us heel width or instep height. It also does not tell us whether the left and right foot match.

Most people have some left-to-right difference

The difference may be small enough that a standard shoe works perfectly well. When it is larger, fitting both feet to one rigid assumption can create a compromise. We review the two feet separately and generally prioritize the larger foot where a choice has to be made.

Why we still ask you to choose a size first

Your normal size is useful. It gives the workshop a starting last and pattern family. Measurements then help us understand whether the order should stay close to that baseline or needs more room in a particular area.

Made-to-fit does not mean throwing sizing away. It means using sizing together with better information.