You will need an extra size US 7 (4.5 mm) needle for the 3 needle bind off.

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

Finished measurements:
Chest circumference: 20.5(22.25, 24, 25.75)“ 52(56.5, 61, 65.5) cm
Finished length: 8.5(9, 9.75, 10.5)” 21.5(23, 25, 27) cm
Sleeve extension: 5.25(5.75, 6.25, 6.5)“ 13.5(14, 15.75, 16.25) cm

Yarn used:
Rowan Cotton Wool
Shown in shades 211 Moon and 207 Piglet - 2(2, 2, 3) balls