I never lost a single sock during or after washing. Why? Because I care (they are expensive cycling socks) and I go after each sock immediately when putting them on the drying rack. So where are they? 1) Entangled with one of the other wet clothing items. (60% of cases) 2) Lost on the way between laundry machine and drying rack (20% of cases) 3) Still in the laundry drum (20% of cases).