New riding boots, reason for discount

Unused riding boots from Sessler, previously purchased from Nakata Shoten. I haven't had the chance to use them, so they are new. The size is 8W, which corresponds to 26.5-27cm. They are made of PU (polyurethane?) rather than genuine leather, but the stitching on the sole is well done. I noticed when taking photos for this listing that there is about a 1cm difference in height between the left and right boots. The height of the upper, excluding the sole, is 35cm on the right and 34cm on the left. I believe this should not be an issue for practical use if you don't mind. No claims, no returns, please.