Measurements
To fit chest
46 51 56 61 cm (18 20 22 24 in)
Length from shoulder
24 28 31.5 35.5 cm (9½ 11 12½ 14 in)
Sleeve seam
15 17.5 20.5 26.5 (6 7 8 10½ in)

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

Materials
Focus Extra DK
1 1 1 2 150 gram balls
Spectrum Bouncing Babes DK*
2 2 2 2 100 gram balls
Duet Baby DK
2 2 2 2 100 gram balls
3 press fasteners
Stitch holders.