The Oslo Hat - Mohair Edition is worked from the bottom up in stockinette stitch. The first part of the hat is worked on a 40 cm 16 inches circular needle, while the top of the hat is worked either on double-pointed needles or on a circular needle using the Magic Loop technique.
Begin by working a swatch to check that you have the correct gauge.

Sizes: baby (child) junior small (junior large) adult S (adult M) adult L

Measurements: Fits head circumference 47-48 (49-50) 51-52 (53-54) 55-56 (57-59) 60-63 cm [18½-19 (19¼-19¾) 20-20½ (20¾-21¼) 21¾-22 (22½-23¼) 23½-24¾ inches]

Gauge: 23 sts x 32 rows = 10 x 10 cm [4 x 4 inches] in stockinette stitch on 3 mm [US3] needles

Needles: Circular needles: 3 mm [US3] / 40 cm [16 inches]
Double-pointed needles: 3 mm [US3]

This kit comes with a digital copy of the Oslo Hat (Mohair Edition) pattern, and enough yarn to make all sizes. Needles sold separately.