You will also need a size US 9 (5.5 mm) needle at least 40” (100 cm) long.

Finished Measurements:
Back:19.75 (20.5, 21.25, 22, 22.75, 23.5)“ 50 (52, 54, 56, 58 ,60) cm
Length:23.5 (24, 24.5, 24.75, 25.25, 25.5)” 60 (61, 62, 63, 64, 65) cm
Sleeve:16.25 (16.25,16.5, 16.5, 17,17)“ 41 (41, 42, 42 ,43, 43) cm

Yarn used:
Rowan Selects Mako Cotton
002 Dusty Gray 8(8 ,9, 9, 10, 10) balls

There is a published addendum for this pattern (the original print version) on the Knit Rowan website. The total length is incorrect between the explanation and the diagram/schematic. Furthermore, the diagram shows cast off stitches under the sleeves which do not exist in the pattern.