You will need

32in Chest - 10 Balls
34in Chest - 11 Balls
36in Chest - 12 Balls
38in Chest - 13 Balls
40in Chest - 14 Balls
42in Chest - 15 Balls

4mm and 6mm Needles
6mm Circular Needle
1 Large Button

for Optional Crochet Edging
5.5mm Crochet Hook