From the Knit Rowan website:
Knit this men’s slip stitch and rib cardigan from Autumn Knits, a design by Marie Wallin using the divine yarn Cocoon (merino wool and kid mohair). With a beautiful slip stitch pattern on the main body, ribbed full length set-in sleeves and a ribbed collar this knitting pattern is for the intermediate knitter

Finished width dimensions:
48: 50.5: 54.5: 57.5: 60: 62.5: 65.5: 68 cm
19: 20: 21.5: 22.5: 23.5: 24.5: 26: 27 inches

Yarn Information:
A - Jupiter 839
7, 8, 9, 10, 10, 11, 11, 12 skeins
882, 1008, 1134, 1260, 1260, 1386, 1386, 1512 yards

B - Venus 838
1, 1, 1, 2, 2, 2, 2, 2 skeins
126, 126, 126, 252, 252, 252, 252, 252 yards

C - Clay 825
1, 1, 1, 2, 2, 2, 2, 2 skeins
126, 126, 126, 252, 252, 252, 252, 252 yards

Extras:
QTY (6) BN1595 (20mm) buttons from Bedecked

Gauge notes:

• 7mm needles are listed in the pattern as the equivalent of US 10.5 needles.
• 15 stitches and 25 rows = 4 inches (10 cm) over body pattern using larger needles.
• 19 stitches and 20 rows = 4 inches (10 cm) over sleeve pattern using smaller needles, slightly stretched.