You will need stitch holders.

Finished measurements:
Chest circumference: 18(19.75, 21.25, 21.75, 22.5, 24)“ 46(50, 53.5, 55, 57, 61) cm
Finished length: 9.75(10.75, 11.75, 12.5, 13.5, 14)” 25(27, 30 ,32, 34, 36) cm
Sleeve length: 6.25(6.5, 7, 8, 8.75, 9.75)“ 16(17, 18, 20, 22, 25) cm

Yarn used:
Hayfield Baby Bonus DK
Shade 619 Baby Dove - 1(1, 2, 2, 2, 2) balls