to evaluate which is your ideal size, you can examine this document:
If your size is not included into those available, you can send an e-mail to specifying size and firstname.lastname@example.org
We will load the corresponding version as soon as possible.
Size 9 - 15.70 mm /
Size 10 - 16.00 mm /
Size 11 - 16.30 mm /
Size 12 - 16.60 mm
Size 23 - 20.00 mm