You will need 6 x 12mm buttons, plus stitch markers and holders.

Finished measurements:
Bust circumference: 36.5(41, 45, 48)“ 94(102, 114, 122) cm
Finished length: 22.25(23, 23.75, 24.5)” 56.5(58.5, 60.5, 62.5) cm
Sleeve to underarm: 17.75(17.75, 18, 18.5)“ 45(45, 46, 47) cm

Yarn used:
Rowan Cotton Cashmere
A. 239 Seapod - &(7, 8, 8) balls
B. 226 Ecru - 1(1, 2, 2) balls
C. 237 Dahlia - 1 ball for all sizes