Measurements
To fit chest
61, 66, 71, 76 cm
24, 26, 28, 30 ins
Length from back neck
41, 44, 47, 53 cm
16, 17½, 18½, 21 ins
Sleeve seam
27, 29, 32, 36 cm
10½, 11½, 12½, 14 ins

Each pattern has a different set of recommended yarns. The following are from the Studley version.

Materials
STUDLEY Double Double Knitting
Supreme, Scandi, or Studleyknit Double Double
Main 4, 5, 6, 6 balls
Contrast 5, 6, 8, 9 balls
One 10, 10, 10, 13 cm (4, 4, 4, 5 inches) fastener
Stitch holder.