For this pattern you will need (50g Balls)

Cardigan

38-40in Chest - 14 Balls
42-44in Chest - 16 Balls
46in Chest - 18 Balls
48-50in Chest - 20 Balls

Jacket

38-40in Chest - 16 Balls
42-44in Chest - 18 Balls
46in Chest - 20 Balls
48-50in Chest - 22 Balls

Needles needed: 4mm
! Button for Cardigan and Jacket.