Size 10. I bought these and wore them once for a day's hike and found they're uncomfortable for me.  Unfortunately the store I bought them at won't take a return on "used" gear so that's a bummer.  Essentially brand new, just a little dusty/dirty from the hike.  Asking $80 OBO and I'll cover shipping in the CONUS (about $20).  They retail for about $150.