From the Knit Rowan website:
Knit this womens rib and textured stitch detail sweater, from Simple Shapes Lima a design by Lisa Richardson, using luxurious Lima (baby alpaca and merino wool). With knitted rib tailoring and texture front panel detail and full length sleeves, this knitting pattern is for the intermediate knitter.

Finished chest width dimensions:
46.5: 51.5: 57: 63: 70.5 cm
18½: 20½: 22½: 25: 28 inches

Yarn Information:
A - Machu Picchu 885
8, 9, 10, 11, 12 skeins
960, 1080, 1200, 1320, 1440 yards

B - Cusco 884
3, 3, 4, 4, 4 skeins
360, 360, 480, 480, 480 yards