Barely used. My kids wore them for one camping trip and that's it. No holes or tears. You can see the difference in the soles of the socks (the ones on the far left are the ones that were used, the others were barely used if not used at all). It seems like such a waste to let wool socks go in the trash so I'm just hoping to find someone who can get more use out of them than we did! See pics for sizing details. These are an extra small and fit my 2-year-old well.