You will also need a size US 3 (3.25 mm) circular needle so more than 16” (40 cm) long.

Finished measurements:
Back width: 19(20.5, 23, 24.5, 27)“ 48(52.5, 58, 62.5, 68) cm
Total length: 25(26, 27, 27.5, 28.5)” 64(66, 68, 70, 72) cm
Sleeve to underarm: 17.5(17.5, 18, 18, 18)“ 45(45, 46, 46, 46) cm

Yarn used:
Rowan Alpaca Soft DK
Shade #210 Rainy Day - 10(11, 12, 13, 14) balls