You will need a cable needle.

Finished measurements:
Bust circumference: 36.25(40.25, 44, 48, 52)“ 92(102, 112, 122, 132) cm
Finished length: 19(19.25, 20.5, 21.25, 22)” 48(50, 52, 54 ,56) cm
Sleeve length to underarm: 17.25(17.25, 17.75, 17.75, 17.75)“

Yarn used:
Rowan Handknit Cotton
Shade 353 Violet - 15(15, 16, 17, 18) balls