You will need a cable needle, as well as stitch holders and markers.

Finished measurements:
Chest circumference: 43( 46.75, 50.75, 54.75, 58.75, 62.5, 66.5, 70.5, 74.5)“ 109( 119, 129, 139, 149, 159, 169, 179, 189) cm
Finished length: 26.75( 27.5, 28.25, 29.25, 30, 30.75, 31, 32, 32.25)” 68( 70, 72, 74, 76, 78, 79, 81, 82) cm
Sleeve seam: 14.5( 15, 15, 15.25, 15.25, 15.25, 15.25, 15.25, 15.25)“ 37( 38, 38, 39, 39, 39, 39, 39, 39) cm

Yarn used:
Rowan Kid Classic
Shade 828 Feather - 12( 12, 13, 14, 15, 16, 17, 18, 19) balls