You will also need:
1 pair of 3.25mm (UK10-US3) knitting needles
1 pair of 4mm (UK8-US6) knitting needles
Stitch holder
Stitch Markers.
Waistcoat: 6[:6:6:7:7]Buttons, 1.50cm 1/2 inch.
Tension:
21sts and 32rows to 10cm (4in) over garter stitch rib on 4.00mm needles or the size required to give the correct tension.