This is mt second buy for this product. So after being patient for a month I have to return them. I have super high arches and I supinate. The worst part about this whole thing is that they have soured me against Bose altogether. I got her size 13-1 MD. The wording needs changing and the seller needs to admit on the advert they are third party giving their customers chance to realise where they?d have to return the items if they are not from Denmark. I couldn?t wear it for a long time - it was so uncomfortable due to my feet feeling so hot and sweating so much. If you have short narrow feet these are the shoes for you. Ill follow up with this review in the coming days / weeks. I could have worn the 10s but would have worried about twisting an ankle in them.