From the Knit Rowan website:
Knit this ladies stocking stitch bolero from Elegant Knits. Designed by Martin Storey using our exquisite self striping yarn Alpaca Colour (alpaca and cotton), this knitting pattern is generously sized to fit up to 46 inch bust.

Finished chest width dimensions:
52.5: 55: 58.5: 61: 63.5: 66.5 cm
20.75: 21.75: 23: 24: 25: 26.25 inches

Yarn Information:
Photographed in Jasper 134
5, 6, 6, 7, 7, 8, 8 skeins
655, 786, 786, 917, 917, 1048, 1048 yards

Extras:
Optional ribbon for tying the fronts together as a closure.