You will need 5(5, 5, 5, 6, 6, 6) buttons, approximately .75” (19 mm) each.

Finished measurements:
Chest circumference: 43( 47.25, 51.5, 56, 59.5, 53.75, 57.25)“ 109( 120, 131, 142, 151, 162, 172) cm
Finished length: 22( 22.75, 23.75, 24.5, 25.25, 26, 26.75)” 55( 58, 60, 62, 64, 66, 68) cm
Sleeve seam: 17 (17.75, 17.75, 18, 18.5, 18.5, 18.5)“ 43( 45, 45, 46, 47, 47, 47) cm

Yarn used:
Hayfield Spirit DK
SHade 416 Joy - 4( 4, 5, 5, 5, 6, 6,