Fit around the foot like this, not perfect but okay. For vigorous calves ('m naturally muscular) is not suitable; I have socks halfway down invert and went through the relatively narrow collar in the evening but as a pressure point above the ankle.
The other manufacturers get better out Falkes "Run" fits to lean how to vigorous calves well, and keeps not pull the trigger. Which are admittedly also in a different price league. Someone with narrow to normal calves these socks can certainly very good wear.
