From the Knit Rowan website:
Knit this women’s stocking stitch pullover from Pioneer, a design by Martin Storey using the gorgeous yarn Big Wool (100% merino wool). With a gorgeous large roll back collar and short ribbed sleeves, this knitting pattern is for the beginner knitter. (Note: website states Creative Focus Worsted, but Big Wool is used in the pattern.)

Finished width dimensions:
46.5: 51: 59: 63.5: 71 cm
18.5: 20: 23: 25: 28 inches

Yarn Information:
Photographed in Lichen 049
6, 6, 7, 8, 9 skeins
522, 522, 609, 696, 783 yards