You will also need a circular needle size US 6 (4 mm) at least 48” (120 cm) in length.

You will also need 6 buttons. Rowan used #BN1337 from Bedecked in the UK.

Finished measurements:
Chest circumference - buttoned:37.75(41.5, 45.25, 49.75, 53.5)“ 96(105.5, 115, 126.5, 136) cm
Finished length: 23.25(24, 24.5, 25.5, 26.75)” 59(61, 62.5, 64.5, 66.5) cm
Sleeve to underarm: 17.75(17.75, 18, 18,18)“ 45(45, 46, 46, 46) cm

Yarn used:
Rowan Island Blend
Shade 900 White - 8(9, 10, 11, 12) hanks