You’ll need a small amount of a cc in this yarn for the buttohole band trim.

Finished chest measurement:
20(21.5, 22, 23, 23.5)“ 51(54, 56, 59, 60) cm

Yarn used:
Patons UK Merino Extrafine 4 ply
4(5, 5, 5, 6) balls color 00046 Plum