Sizes (finished bust):

XS/S: 37 inches / 94 cm
M: 41.5 inches / 105.5 cm
L: 46 inches / 117 cm
XL: 50 inches / 127 cm
XXL: 57.5 inches / 146 cm
XXXL 65 inches / 165 cm

Errata available:
Page 21
Correct Text:
Materials
Patons Shetland Chunky (100 g / 3.5 oz)
Main Color: XS/S – 5 balls, M – 7 balls, L – 8 balls, XL – 9 balls, 2/3 XL – 10 balls, 4/5XL – 12 balls.