You will also need:
4[4:5:6:6:7] 1cm Buttons for Crochet Top
6 x 3.5cm Buttons for shorts and 4 press studs
Tension
17 sts and 24 rows to 10cm, 4in, over spike double crochet pattern on 3.75mm hook or the size required to give the corrcet tension.
17 sts and 20 rows to 10cm, 4in, over double crochet on 3.75mm hook or the size required to give the correct tension