You will need 4 x 1” (2.2 cm) buttons. Erika chose tortoise shell buttons for this design.

Finished measurements:
Bust circumference: 39.5(43.75, 47.75, 51.5, 55.5, 59.5, 63.5, 67.25, 72)“ 101(111, 121, 131, 141, 151, 161, 171, 183) cm
Finished length: 21.25(22, 22.75, 23.5, 24.5, 25.25, 25.5, 26.5, 26.75)” 54(56, 58, 60, 62, 64, 65, 67, 68) cm
Sleeve to underarm: 17(17.25, 17.25, 17.75, 17.75, 17.75, 17.75, 17.75, 17.75)“ 43(44, 44, 45, 45, 45, 45, 45, 45) cm

Yarn used:
Rowan Pebble Island
Shade 029 Macaroni - 10(11, 12, 13, 14, 15, 16, 17, 18) hanks