I bought a pair of these to replace an old pair of 500s that finally gave up the ghost. They are everything the old pair was, plus the new nice lining. But they are definitely smaller. I'm a woman with wide feet, ordered the 5.5, which  matches the old pair. I assumed they were a bit tight because they were new, and wore them with thinner socks. They are smaller over the arch, and length of heel, slightly less wide. Putting them sole to sole with the old pair makes this obvious. I wish I had not worn them and sent them back for the next size up. Otherwise great shoe.