You will need 5 buttons, approximately 3/4” to 7/8” (2.0 mm). Rowan used leather buttons (note washability if you select leather buttons).

You will also need a size US 3 (3.25 mm) circular needle, at least 48” (130 cm) long for the neckline.

Finished measurements
Chest circumference: 38( 42, 45.75, 49.75, 53.75, 57.75, 61.5, 65.5)“ 96.5( 106.5, 116.5, 126.5, 136.5, 146.5, 156.5, 166.5) cm
Finished length: 26( 26.75, 27.5, 28.25, 29.25, 30, 30.75, 31.5)” 66( 68, 70, 72, 74, 76, 78, 80) cm
Sleeve seam:18.5( 19.75, 20, 20.5, 20.75, 20.75, 21.25, 21.25)“ 47( 49, 51, 52, 53, 53, 54, 54) cm

Yarn used:
Rowan Softyak DK
A. 230 Cream - 5(6, 6, 7, 7, 8, 8, 9) balls
B. 251 Submarine - 6(7, 7, 8, 9, 9, 10, 11) balls
C. 255 Albany - 2(2 ,2, 2, 2, 2, 3,3) balls
D. 252 Jaune - 2(2, 3, 3, 3, 3, 3 ,4) balls