The pattern is written for magic loop but may easily be adapted to your preferred method of small circumference knitting. If you aren’t tempted by the afterthought heel you could of course substitute your heel of choice.
Materials and Pattern specifics
2.5mm 100cm circular needle for magic loop (the instructions are written for magic loop but are easily adaptable to other methods of small-circumference knitting)
1 x 100g sock yarn (MC) sample knit as shown used approx. 55g MC (for a UK size 6)
Approx 20g sock yarn scraps (CC). Each colour band uses less than 2g yarn.
GAUGE: 32 stitches x 44 rows = 10cm/4” in stocking stitch, blocked
SIZE: M (L): 20 (22.5)cm/8 (8.75”) circumference, designed to fit with approx 2cm/0.75” negative ease