From the Knit Rowan website:
Knit this round neck ladies sweater by Deborah Newton. Knitted in Pure Wool Superwash Worsted it has garter stitch trims and all over colourwork on the body making it suitable for the more experienced knitter.

Finished dimensions:
47.5: 52: 58: 64: 71 cm
18½: 20½: 23: 25: 28 inches

Yarn information:
Photographed in Rowan Pure Wool Worsted
A - Mallard 144
4, 4, 5, 5, 6 skeins
876, 876, 1095, 1095, 1314 yards

B - Magenta 119
1, 1, 1, 1, 1 skein
219, 219, 219, 219, 219 yards

C - Ocean Wash 175
2, 3, 3, 3, 4 skeins
438, 657, 657, 657, 876 yards