You will also need 3 buttons, approximately 3/4” (20 mm). Rowan used #TGB4989 black coated metal from Textile Garden in the UK.

Finished measurements:
Chest circumference: 34.75( 39, 43, 47.25, 51.5, 55.5, 59.75, 63.5, 67.75)“ 88.5( 99, 109.5, 120, 130.5, 141, 151.5, 161.5, 172) cm

Yarn used:
Rowan Creative Linen
A. 635 Stormy- 3(4, 4, 4, 5, 5, 6, 6, 6) hanks
B. 650 Silver - 3(4, 4, 4, 5, 5, 6, 6, 6) hanks