CO 64.

5 rounds of K1, P1 or 1”.

Garter until total length is 6”

K6, K2tog
P
K5, K2tog
P
K4, K2tog
P
K3, K2tog
P
K2, K2tog
P
K1, K2tog
K2tog

Cut yarn, weave through remaining stitches.

Hat fits very well. The change from K rows to P rows, at the beginning of each row, created a visible vertical line at the stitch marker - no clue how to eliminate that line. The second photo shows the “seam” for lack of a better word.