Illustrated on an Instagram video here:
https://www.instagram.com/reel/DGlT8OsRsWX/?utm_source=ig...==

Required: 100g of 16 ply yarn. I used 2 strands of double knitting yarn together. You can use any combination of weights so long as they add up to 16 ply.
Needles: 6.5mm circular needle
Abbreviations: all instructions written in full
Size: to fit over an average man’s head – 22 inches