Gauge measured over moss stitch
15½ stitches and 25 rows = 10 cm
over moss stitch using 5.5 mm needles

Measurements
To fit chest
51 56 61 66 71 76 cm (20 22 24 26 28 30 in)
Length from back neck
30 34.5 38 45 49.5 53.5 cm (11¾ 13½ 15 17½ 19½ 21 in)
Sleeve seam
17.5 20.5 26.5 31.5 37 40.5 cm (7 8 10½ 12½ 14½ 16 in)

Each source has a different set of recommended yarns. The following is from the Wool O’the West version.

Materials
Knit-it-Kwik
2 3 3 3 4 4 100 gram balls
’Everest’ Chunky
3 3 3 4 4 5 100 gram balls
Stitch holders.