You will also need 3 buttons measuring approximately 1” (25 mm) and 6 buttons approximately 5/8” (15 mm). Rowan used #TGB4777 imitation horn and TGB3020 grey shank buttons, respectively, from Textile Garden in the UK.

Finished measurements:
Chest circumference: 36.5( 40.75, 45, 58.5, 53, 56.5, 60.75, 64.25, 68.75)“ 92.5( 103.5, 114.5, 123.5, 134.5, 143.5, 154.5, 163.5, 174.5) cm
Finished length: 21.75( 22.5, 23.25, 24, 24.75, 25.5, 26, 26.75, 27.25)” 55( 57, 59, 61, 63, 65, 66, 68, 69) cm
Sleeve seam: 17.25( 17.75, 17.75, 18, 18, 18, 18, 18, 18)“ 44( 45, 45, 46, 46, 46, 46, 46, 46) cm