From the Knit Rowan website:
This mens graduated stripe sweater is now available as a paid pattern download. Designed by Marie Wallin in Cotton Glacé, its simple shaping would make it suitable for the knitter with little experience.

Finished width dimensions:
56.5: 59: 61.5: 65: 68: 71.5 cm
22: 23: 24: 25½: 27: 28 inches

Yarn information:
Photographed with Rowan Cotton Glace
A - Twilight 829
9, 10, 10, 11, 12, 12 skeins
1125, 1250, 1250, 1375, 1500, 1500 yards

B - Sky 749
7, 8, 8, 9, 9, 10 skeins
875, 1000, 1000, 1125, 1125, 1250 yards