Materials:
5.00mm(U.S H/8) crochet hook or size needed to obtain gauge
Aran(worsted weight) yarn. I used Hayfield Aran Bonus with 20% wool- 400g balls Ginger (726). The colour choices are gorgeous and it is budget friendly.
2-3 buttons
tapestry needle

Gauge:
15 stitches/12 rows= 10cmX10cm (4X4 inch) square in half double crochet

Stitches and abbreviations used:
st or sts- stitch or stitches ch- chain stitch
sl st- slip stitch
sk st- skip st
sc- single crochet
dc- double crochet
hdc- half double crochet
hdc 2tog- half double crochet two stitches together RS- right side of the jacket
WS- wrong side of the jacket
This jacket is designed with a positive ease of 30-45cm/12-18in.