Eleven millimetres, measured at the widest point
The measurements
Eleven millimetres wider across the joint, four deeper at the toe. The last is genuinely different rather than the same shape stretched.
How to know if you need it
Print the measuring guide, stand on it, and measure across the widest part. It takes two minutes and beats guessing.
If it is still wrong
Return it free and we will send the other fitting. Getting this right takes most people one exchange.
