From the Knit Rowan website:
Knit this womens rib detail cardigan, from Simple Shapes Fine Art Aran a design by Sarah Hatton, using colourful Fine Art Aran (kid mohair, super fine alpaca and mulberry silk). With a knitted in the round yoke and full length sleeve, this knitting pattern is for the intermediate knitter.

Finished chest width dimensions:
46.5: 50.5: 57: 63: 70.5 cm
18½: 20: 22½: 25: 28 inches

Yarn Information:
Photographed in Bolero 543
5, 5, 6, 7, 7 skeins
930, 930, 1116, 1302, 1302 yards

Extras:
QTY (5) BN1681 buttons from Bedecked