Errata from Quail Studio:

CHARLIE
Yarn usage: 2 x 25gm balls of Alpaca Classic
Worked flat
Row 1 (RS): * K1, P1 rep from * to end.
Rep last row until brim meas 5cm, ending on a
RS row and dec 1 st at end of last row. 115 sts

This pattern features instructions to knit the hat flat, or in the round.
If you choose to work in the round, you will need a set of double-pointed needles.

Yarn used:
Rowan Alpaca Classic
Shade 116 Soft Satin - 2 balls