You will need a stitch holder.

Gauge is measured on a 7 mm needle, which in the US is a 10.75 needle. Check you gauge on the US 10.5 needle, as you may need to invest in a 10.75 needle.

You will also need two size US 10.5/10.75 (7.0 mm) double-pointed needles.

Finished measurements:
Bust circumference: 43( 47.25, 51.5, 56, 60.25, 64.5, 66.75, 71, 75.5)“ 109( 120, 131, 142, 153, 164, 169.5, 180.5, 191.5) cm
Finished length:
Sleeve seam:

Yarn used:
Rowan Merino Aria
Shade 042 Bear - 20( 21, 22, 22, 23, 23, 24, 24, 25) balls