You will need 5(5, 6, 6) buttons. Rowan used # BN2012 from Bedecked in the UK.

Finished measurements:
Chest circumference: 23.5(25.5, 28, 30.75)“ 60(65, 71, 78) cm
Finished length: 16.5(18, 19.75, 21.25)” 42(46, 50, 54) cm
Sleeve to underarm: 9.5(11, 12.5, 14.25)“ 24(28, 32, 36) cm

Yarn used:
Rowan Baby Cashsoft Merino
A. 101 Snowflake - 5(6, 7, 8) balls

Small amounts of:
B. 118 Turquoise
C. 116 Fuschia
D. 110 Apple