You will also need an additional size us 6 (4.0 mm) needle for the three-needle bind off.

You will need 3 buttons - approximately 5/8” (1.5 cm). Rowan used buttons with two holes.

Finished measurements-
Chest circumference: 19(19.75, 20.5, 21.25)“ 48(50, 52, 54) cm
Finished length: 9(9.75, 10.5, 11.5)” 23(25, 27,29) cm
Sleeve seam (excluding turnback): 4(4.75, 5.5, 6.25)“ 10(12, 14, 16) cm

Yarn used:
Rowan Cotton Wool
Shade 209 Nutkin - 2(2, 3, 3) balls