From the Knit Rowan website:
Knit this woman’s strappy lace top from Rowan Knitting & Crochet Magazine 57, a design by Vibe Ulrik using Panama (viscose,cotton and linen) with ribbon across back. This knitting pattern has a two star difficulty rating.

Finished chest width dimensions:
84: 93.5: 107.5: 116.5: 130.5 cm
33: 37: 42½: 46: 51½ inches

Yarn information:
Photographed in Icing 316
4, 5, 6, 6, 7 skeins
592, 740, 888, 888, 1036 yards

Extras:
200 cm of 1.5 cm wide ribbon (or fabric tape) for ties