Experienced: unusual construction, short rows

Sizes
Small (Medium, Large)
Measurements
Circumference: 16 1⁄4 (18 3⁄4, 21)in/41.5 (47.5, 53.5)cm.
Length: 8 1⁄2 (9, 9 1⁄2)in/21.5 (23, 24)cm.

Yarn
Knitted with 1 x 50g skein of Amitola shade 139 Cosmopolitan.

Needles and notions
Size US 3/3.25mm circular needles, 16in/40.5cm long.
2 stitch markers.
Yarn needle.

Tension/gauge
20 sts and 40 rows to 4in/10cm over garter stitch.

Hat is knit flat. The first panel is worked from the bottom edge to the top of the crown, then stitches are picked up from the side edge and a second panel is knit on perpendicularly to the first. The hat is then closed with a seam. Brim is picked up from the bottom edge and worked in the round.