From the Knit Rowan website:
Knit this mens round neck sweater, a design from the Rowan archive that is now available to purchase online. A design by Sarah Hatton using our unique denim yarn, Original Denim (cotton), this shaped sweater has front and sleeve cable detail.

Finished width dimensions:
56: 59: 62: 65: 68 cm
22: 23: 24½: 25½: 27 inches

Yarn Information:
Photographed in Memphis 229
19, 21, 22, 24, 24 skeins
1900, 2100, 220, 2400, 2400 yards

Gauge notes:

• Before washing: 20 stitches and 28 rows to 10cm (4 inches) measured over stockinette stitch using larger needles.
• After washing: 20 stitches and 32 rows to 10cm (4 inches) measured over stockinette stitch using larger needles.
• Machine wash all pieces before completing sewing together.
• Denim will shrink in length when washed for the first time. Allowances have been made in the pattern for shrinkage.