From the Knit Rowan website:
Knit this womens striped and ridge stitch top from the Pure Linen Collection, designed by Lisa Richardson using the divine yarn, Pure Linen (linen). With an interesting gathered back detail, front round neck and simple stripe pattern, this knitting pattern is suitable for the intermediate knitter.

Yarn Information:
A - Sahara 389
4, 5, 6, 7, 8 skeins
568, 710, 852, 994, 1136 yards

B - Arabian 394
2, 2, 2, 3, 3 skeins
284, 284, 284, 426, 426 yards

Published as ‘Simple Lines top’ in Simply Knitting 121, June 2014