You will also need a size US 3 (3.25mm) circular needle at least 48” (120 cm ) long for the neck band.
You will also need 6 buttons. Rowan used #BN1979 from Bedecked in the UK.

Finished measurements:
Bust circumference: 44(49, 51.5, 56.5, 60.5)“ 112( 124, 131, 143, 154) cm
Finished length: 30.5(31.5, 32.5, 33, 34)” 78(80, 82, 84, 86) cm
Sleeve length to armhole: 17.5” for all, 44944, 45, 45, 45) cm

Yarn used:
Rowan Felted Tweed
Shade 194 Delft - 9(10, 11, 12, 13) balls