Birkenstock Boston. I bought these a while ago and have kept them in storage without wearing them. They are in excellent condition. Please check the images. I believe this is a very rare model. You don't see them often, do you? How about it if you don't want to be seen wearing the same thing as others! The size is 41 (26.5), a golden size. Boston BS Corduroy Cork Brown No stains, tears, or odors.