You will need a cable needle and stitch holders.

Finished measurements:
Chest circumference: 45.75(50.5, 54.25, 58, 61.5, 66)“ 116(128, 138, 147, 156, 168) cm
Finished length: 22(22.75, 23.75, 24.5, 25.25, 26)” 56(58, 60, 62, 64, 66) cm
Sleeve to underarm: 17(17, 17.25, 17.75, 17.75, 17.75)“ 43(43, 44, 45, 45, 45) cm

Yarn used:
Hayfield Bonus with Wool Aran
Shade 822 Blue Slate - 2(2, 2, 3, 3, 3) balls