Copped these on ebay. Right boot is original, left boot apparently had a defective zipper and was professionally replaced with a YKK zipper. However, the zipper track seems to be too long and is bending and bulging outwards at the bottom, revealing the zip track way more than it should and there being more space at my arch, so it doesn't fit me as well. The stitch work around the zipper is also quite messy, so I might get someone to take a look at that zipper again. Otherwise, beautiful boots, especially if you have a low instep. Striations in the horsehide are beautiful.