Measurements
Chest
18, 20, 22 in

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

Materials
STUDLEY Double Knittings
Tricel/Nylon Crepe
1, 1, 2 balls
Petspun Nylon
1, 1, 2 balls
Swiss Nylon
1, 1, 2 balls
Super Pure New Wool
1, 1, 2 balls
Superwash (machine washable)
1, 1, 2 balls
Florando
1, 1, 2 balls
Paradiso Crepe or Studleyknit
1, 1, 2 balls
ribbon.