Cas Hat (‘kos’, meaning twist in Irish) is a two-coloured hat with an interlacing ribbon cable, inspired by the Golden Age of Irish Art.
Cas Hat accompanies the Cas shawl, released earlier this year.

The pattern is worked in the round, beginning with a ribbed brim. It features a single cable motif (based on my Cas Shawl pattern), worked in two colours, over garter stitch. It is finished with a gathered crown, for a slightly slouchy fit. The pattern is worked in the round, with only one colour per row. Cable stitches are slipped when working a round in the ‘other’ colour.

Skills required: garter stitch in the round, working cables in two colours, slipping stitches, elongated stitches.
The main difficulty with this pattern is that there are quite a lot of slightly different cable stitches, so the cable requires attention.

Cable instructions are provided in both written and charted form.

Sizes:
To fit head circumference:
Size 1 (Child): 50.5 cm / 20 inches.
Size 2 (Small Adult): 56 cm / 22 inches.
Size 3 (Large Adult): 61 cm / 24 inches.

Actual hat size: (at gauge given)
Size 1: Circumference 45 cm / 17.5 inches. Depth 20 cm / 8 inches. Size 2: Circumference 50 cm / 19.5 inches. Depth 23 cm / 9 inches. Size 3: Circumference 55 cm / 21.5 inches. Depth 25 cm / 10 inches.

Gauge:
24 sts & 48 rounds to 10 cm / 4 inches, in striped garter stitch worked in the round, measured after blocking.

Needles
3.25 mm or size needed to achieve gauge, circular or double pointed needles for working in the round.

Yarn:
Two colours of fingering weight yarn in the following quantities:
Size 1: Col A 84 metres / 92 yards. Col B 65 metres / 71 yards.
Size 2: Col A 100 metres / 109 yards. Col B 80 metres / 87.5 yards. Size 3: Col A 124 metres / 135.5 yards. Col B 88 metres / 96 yards.

Samples use KDD & Co Milarrochy Tweed.
(70% wool / 30% mohair. Single ply. 100m / 109 yards per 25g ball). Size 1: Col A Stockiemuir. Col B Birkin.
Size 2: Col A Campion. Col B Hirst.
Size 3: Col A Ardlui. Col B Stockiemuir.

Additional Materials:
Darning needle for weaving in ends, cable needle, stitch markers.
For blocking: pins, towel, flat surface or rolled up plastic bags.