From the Knit Rowan website:
Knit this ladies’ oversized sweater, a design from the Rowan archive that is now available to purchase online. Designed by Martin Storey using the lovely dry handle summer yarn Creative Linen (cotton and linen), this sweater has a slouchy ribbed neckline and patch pockets.

Finished width dimensions:
48.5, 53.5, 59, 65.5, 72.5 cm
19, 21, 23, 26, 28.5 inches

Yarn Information:
Photographed in Natural 621
8, 8, 9, 10, 11 skeins
1752, 1752, 1971, 2190, 2409 yards