There are separate instructions for size 26 - 34 inch (child and teenager) and size 36 - 44 inch (adult).

For back, front and sleeves “work exactly as instructions given for Crew Neck version”.

The 3.25mm needles are used only for the final part of the polo neck ribbing.

Measurements
To fit chest
66, 71, 76, 81, 86, 92, 97, 102, 107, 112 cm
(26, 28, 30, 32, 34, 36, 38, 40, 42, 44 inch)
Length from back neck
46, 51, 54, 58, 62, 66, 68, 70, 71, 72 cm
(18, 20, 21½, 23, 25, 26, 27, 27½, 28, 28½ inch)
Sleeve seam
31, 33, 38, 40, 43, 45, 46, 46, 48, 48 cm
(12, 13, 15, 16, 17, 17½, 18, 18, 19, 19 inch)

Each pamphlet has a different set of recommended yarns. The following are from the Keynote version.

Materials
KEYNOTE Double Knitting
Courtelle DK
14, 15, 17, 19, 22, 24, 26, 28, 30, 32 X 20 gram balls
Brushed DK
14, 15, 17, 19, 22, 24, 26, 28, 30, 32 X 20 gram balls
Courtelle/Wool DK
8, 8, 9, 10, 12, 13, 14, 15, 16, 17 X 40 gram balls
Shetland Style DK
7, 7, 9, 10, 10, 11, 12, 13, 13, 14 X 50 gram balls
Acrylic DK
16, 17, 20, 22, 25, 27, 30, 32, 34, 36 X 20 gram balls
Cable needle
Stitch holders.