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Sizing

Measure the foot, not the shoe

Shoe sizes vary between brands by more than a full size. Foot length does not vary at all. Every size on this site is defined by measured foot length in millimetres, with the EU size as a label rather than a definition.

How to measure

  1. Put a sheet of paper on a hard floor with one short edge flat against a wall.
  2. Stand on it with your heel touching the wall, weight on both feet. Standing matters: a foot under load is up to 5 mm longer than a foot at rest.
  3. Mark the paper at the tip of your longest toe. That is not always the big toe.
  4. Measure from the wall edge of the paper to the mark, in millimetres.
  5. Measure both feet and use the larger number. Most people have two slightly different feet.
A sheet of paper flat against a wall edge with a ruler laid along it, and two marks indicating heel and longest toe.
Heel against the wall, mark at the longest toe, measure in millimetres.

Between two sizes

Take the larger size. A sock that is slightly long sits fine; a sock that is short pulls the heel pocket under the arch and wears through faster at the toe. The one exception is our fine-gauge products, which have less stretch than the plain and rib knits — if you are within 3 mm of the lower size on those, take the smaller one.