From the Knit Rowan website:
Knit this ladies bohemian style cardigan from Boho Chic. Designed by Emily Platt using the beautiful yarn Cocoon (merino wool and kid mohair), this fringed jacket has a contrasting geometric pattern and moss stitch edgings.

Finished chest width dimensions:
50: 56: 63: 69: 75: 81 cm

Yarn information:
Photographed in Rowan Cocoon
A - Mountain 805
5, 6, 7, 7, 8, 9 skeins
630, 756, 882, 882, 1008, 1134 yards

B - Polar 801
4, 5, 6, 6, 7, 7 skeins
504, 630, 756, 756, 882, 882 yards

Gauge note:
6.5mm is considered the US equivalent for UK 7mm needles.