Measurements
To fit chest
61 66 71 76 cm (24 26 28 30 in)
Length from back neck (approx)
38.5 43 49 54 cm (15¼ 17 19¼ 21¼ in)
Sleeve seam
26.5 31.5 37 40.5 cm (10½ 12½ 14½ 16 in)

Each source has a different set of recommended yarns. The following is from the King Cole version.

Materials
Moby 100 Aran
4 4 4 5 100 gram balls
Moby Dick Aran
1 1 1 2 400 gram balls
6 7 7 8 buttons.