From the Knit Rowan website:
Knit this ladies summer top in Softyak DK. Designed by Marie Wallin it was deep ribs and an allover lace pattern, it would be suitable for the knitter with a little experience.

Finished width dimensions:
at hem
42.5: 47: 53: 58.5: 66 cm
16½: 18½: 21: 23: 26 inches

cuff to cuff, not including garter stitch edge
60.5: 65: 71.5: 77: 84 cm
24: 25½: 28: 30½: 33 inches

Yarn information:
Photographed with Rowan Softyak DK in Peat 242
5, 6, 7, 8, 9 skeins
740, 888, 1036, 1184, 1332 yards