You will need a cable needle.

You will also need the following circular needles:

• Size US 3(3.25 mm) no longer than 24(24, 24, 36, 36, 36, 40, 40, 40)“ 60(60, 60 ,80, 80 ,80, 100, 100, 100) cm long
• Size US 5(3.5 mm) no longer than 24(24, 24, 36, 36, 36, 40, 40, 40)“ 60(60, 60 ,80, 80 ,80, 100, 100, 100) cm long

Set of 4 double pointed needles in both size US 3 (3.25 mm) and US 5 (3.75 mm)

Finished measurements:
Chest circumference: 35.75( 39.75, 43.5, 47.25, 51, 54.75, 58.75, 62.5, 66.25)“ 91( 101, 110.5, 120, 129.5, 139, 149, 158.5, 168) cm
Finished length: 25.25( 26, 26.75, 27.5, 28.25, 29.25, 29.5, 30.25, 30.75)” 64( 66, 68, 70, 72, 74, 75, 77, 78) cm
Sleeve length: 17.75( 18, 18, 18.5, 18.8, 18.5, 18.5, 18.5, 18.5)“ 45( 46, 46, 47, 47, 47, 47, 47, 47) cm

Yarn used:
Rowan Cotton Revive
Shade 005 Moss - 5(6, 6, 7, 7, 8, 8, 9, 9) balls