Size check: measure at home, fit in store
Most people wear the wrong size in at least one brand. Here is how to get close at home, and why the final answer is a fitting.
Feet swell through the day. Measure after the walk or the run, not before breakfast.
Both. One is usually longer. Fit the longer one.
Write it down for both feet. Width too: widest point across the ball.
Running and walking shoes need about 10–12 mm in front of the longest toe. Court shoes a little less.
A UK 8 is not the same length in every brand. Use millimetres; ask the store for the brand's length chart.
Marathon Fit measures both feet digitally and logs them. The fitting logs both feet for next time.
Your foot length, in millimetres
Heel to longest toe, measured in the evening. Enter the longer foot.
An estimate across brands; each brand's last differs by up to half a size. The store measures both feet and width.
Size is the most common thing we correct, and the one that matters most to comfort and injury. Do the home measurement to get close; let the fitting finish the job.
Still not sure?
Send a photo of your current shoes and tell us what you do. A fitter replies, or come in and try.