Did 3 stitches Icord border on each side which makes it a bit less stretchy - but this might be a good thing, to hinder it from “ausleihern” (stretching out?)

Was not sure about the lenght, thought 50 cm might be too large, but it is ok for a big head like mine (app. 59 cm circumference.

Like how the doubled sockyarn looks knitted up, the fabric is nice and cozy. Plan to wear this below my bike helmet.