Sizes and measurements:

Finished chest:
0-6 months – 19 inches or 48.5cm
6-12 months – 21 inches or 53.5cm
1-2 years - 25 inches or 63.5cm
3-4 years – 27 ½ inches or 70cm

Finished length:
0-6 months – 9 inches or 23cm
6-12 months – 11 inches or 28cm
1-2 years - 13 inches or 33cm
3-4 years – 15 inches or 38cm

But the length can be very easy adjusted, simply repeat last rows less or more times.

Materials:

• depends which size you are going to make you will need 100gr,150gr, 200gr, 250gr of worsted weight yarn (MEDIUM 4) (I used 40% acrylic/60% merino wool blend yarn, and I used sport weight yarn (FINE2) in two strands)
• crochet hook 4mm (G) or size needed to obtain gauge
• thread and needle
• approximately 5-7 buttons, but it depends which size you are making and you can choose how many buttons to use
• small amount of contrasting color yarn (optional)

Stitches used:
st(s) – stitch(es) ch – chain stitch
sc – single crochet
dc – double crochet
sl st - slip stitch