You will need 7 buttons, approximately 5/8” (15 mm) each. Rowan used wooden buttons #TGB4083 from Textile Garden in the UK.

Finished measurements:
Chest circumference: 32.5( 36.5, 40.75, 45, 49, 53.25, 57, 61.25, 65.25)“ 82.5( 93, 103.5, 114, 124.5, 135, 145, 155.5, 166) cm
Finished length: 19.75( 20.5, 21.25, 22, 22.75, 23.75, 24.25, 24.75, 25.25)” 50( 52, 54, 56, 58, 60.5, 61.5, 63, 64) cm
Sleeve seam: 17.25( 17.75, 17.75, 18, 18, 18, 18, 18, 18) “ 44(45, 45, 46, 46, 46, 46, 46, 46) cm

Yarn used:
Rowan Alpaca Classic
A. 109 Deep Teal - 7(8, 8, 9, 10, 11, 12, 13, 13) balls
B. 111 Green Moss - 1 (1, 1, 1, 1, 1, 1, 2, 2) balls
C. 135 Toffee - 1 ball for all sizes