From the Knit Rowan website:
This ladies raglan sweater features in Rowan Loves Cotton Lustre and All Seasons Cotton. It is designed by Gemma Atkinson in All Seasons Cotton and has an all over textured rib pattern. It would be suitable for the knitter with a little experience.

Finished width dimensions:
at underarm
48: 53.5: 59: 65.5: 72 cm
19: 21: 23: 26: 28½ inches

Yarn Information:
Version with Rowan Cotton Lustre not shown
13, 15, 17, 18, 21 skeins
1131, 1305, 1479, 1566, 1827 yards

Photographed with Rowan All Seasons Cotton in Organic 178
12, 13, 15, 16, 18 skeins
1176, 1274, 1470, 1568, 1764 yards

Gauge notes:
Cotton Lustre
1 pair 5mm (UK 6/US 8) knitting needles
1 pair 6mm (UK 4/US 10) knitting needles

All Seasons Cotton
1 pair 4½mm (UK 7/US 7) knitting needles
1 pair 5mm (UK 6/US 8) knitting needles

Due to the nature of cotton yarns we would recommend that you measure your work whilst it hangs from your needles rather than laying it out flat.