Sizes are based on sizing charts from the yarn council of America
Chest circumference
XS: 28-30 in / 71-76 cm
S: 32-34 in / 81-86 cm
M: 36-38 in / 91.5-96.5 cm
L: 40-42 in / 101.5-106.5 cm
XL: 44-46 in / 111.5-117 cm
XXL: 48-50 in / 122-127 cm

Materials:
Yarn: 6, 6, 6, 6, 6, 9 balls in DK/light-worsted weight. Use three strands held together.

The model is shown in Superwash 4 from Lammy Yarns 100% wool; 137 yards / 125 meters per 50 gram ball; normal gauge is 22 sts on 4 in/10cm with US 4 / 3.5mm needles.

You’ll need 142 166, 192, 221, 250, 282 yards / 130 152, 176, 202, 229, 258 meters
Please note that yards /meters are per strand of yarn you use.

Needles:1 set US 15 /10 mm double-pointed, or circular (of length 16 in/40 cm), or other size to obtain gauge.

Tapestry needle

Abbreviations:
sts: stitches
co: cast on
k: knit
p: purl
yo: yarn over
k2tog: knit 2 together
skp: slip stitch, knit 1, pass slipped stitch over
sk2p: slip 1, knit 2 together, pass slip stitch over the knit 2 together