Half Hexagon Cowl - knitting pattern

This long cowl is made of half-hexagon modules; each is worked from the outside towards the center, this way new modules can be knitted onto the old ones and no sewing is required.

Yarn
Miss Babs Yowza Mini (100% Superwash Merino; 200 yd/2.8 oz (182 m/80 g) skeins)
3 skeins, shown in Coal (C1), French Marigold (C2), Biker Chick (C3)
OR
three 200 yd/182m skeins of DK weight yarn, 2 skeins in solid or semi-solid colorways (C1 and C2) and 1 skein in variegated colorway (C3) that matches both C1 and C2.

Finished Measurements
Circumference: 58”/145 cm
Width: 10¾”/27 cm

Needles
US 6/4 mm and US 5/3.75 mm circular needles, at least 40”/100 cm long or size to obtain gauge
US H-8 5 mm crochet hook (for provisional cast on)

Gauge
Blocked: 21 stitches and 29 rows = 4”/10 cm square in stockinette stitch.
Unblocked: 21 stitches and 30 rows = 4”/10 cm square in stockinette stitch.

Gauge is not crucial for this project, but will affect yardage and finished size if different from above.

Notions
1 Removable marker
Scrap yarn
3 Stitch markers
Tapestry needle