The same goes for shoes and if you're dedicated to minimalist shoes you're basically doomed to men's shoes. Shoe size for women is a joke and seeing that most apparel and shoes are made in Asia, the divergence to standard measurements or sizes is doubly apparent.
Doesn’t help that high quality European made shoes are made either in Portugal, Spain or Italy, where women have also small feet.
I believe there are still quite some shoe factories in Germany and Eastern Europe, but are mostly dedicated to Hiking and Mountanieering shoes