From the Knit Rowan website:
Knit this womans allover simple lace rib round neck jumper from Rowan Knitting & Crochet Magazine 57, a design by Lisa Richardson using Panama (viscose,cotton and linen) with long set in sleeves. This knitting pattern has a three star difficulty rating

Finished chest width dimensions:
44: 49: 56: 60.5: 67.5 cm
17½: 19½: 22: 24: 26½ inches

Yarn information:
Photographed in Blue Fog 317
8, 9, 10, 11, 12 skeins
1184, 1332, 1480, 1628, 1776 yards