Just ordered my first pair of OSB!
Thank you very much!!
Did that just develop? You've only worn them around the house? Have you applied anything to them?
I applied Reno to them when I got them, brushed them and worn them around the house. They were very dark before I started wearing them and did not notice anything but as I wore them and the leather started to stretch and lighten I saw the mark. My guess is that the mark was there the whole time and it went unnoticed as the leather is quite dark until it stretches.
In the pics above I pushed the spot from the inside to see what that would do to the spot but it only lightened it slightly compared to the area around it.