How-To Video https://youtu.be/evK0CMZDV18
You will need
2 DK (light worsted weight) Yarn
Cast-on 14st on 3.5mm needle
Row 1 K2, P2, K6, P2, K2
Row 2 K4, P6, K4
Row 3 K2, P2, T2F, K2, T2B, P2, K2
Row 4 K4, P6, K4
Row 5 K2, P2, K1, T2F, T2B, K1, P2, K2
Row 6 K4, P6, K4
Rep Rows 1 - 6 for how ever long you need your wristband/headband to be.
Cast off and sew edges up.
You can leave the band like that or to make the pattern pop you can go over it with a contrasting colour.