I received these from my sister as used, but they're a bit small for my 24.5 cm feet, so I've only worn them once. My sister seems to have worn them for about two years during the winter. She said they cost 20,000 yen at the time. They seem to be selling for around 26,000 yen new now. They look navy-ish, but the material is black (not completely black). How about these for women with 24 cm feet? Size 37. My sister originally changed the laces, and she thinks these might have been Birkenstock laces? (Sorry if that's wrong) I've reattached the new shoelaces that were given to me. The following is a copy: A simply refined pair. The appeal of the Birkenstock Montana lies in its unique seamless design. *This product has significant individual differences due to the use of oiled leather, a natural leather.