My design ideas and advice:
This crew neck cardigan is perfect for a baby boy or a baby girl. I used my favourite rib stitch, which I have named after the hat I first used it on, the Caspian Hat – an aran weight hat and the Kura Hat – a DK weight hat. I also used it on the edging for the Sephora Jumper and the Capra Hat. I shall continue to use it again and again because I love it so!
On this baby cardigan I used it as detail on the fronts. I added two cute pockets too but these are easy to leave out if you wanted to.

For this pattern you need:

Yarn:
1 (2, 2, 2, 3) 50g balls of WYS Bluefaced Leicester DK in shade A.
Oddment (about 20-30g) of DK weight yarn in shade B.

Metres/Yardage of shade A:
220 (330, 450, 450, 600)m/
240 (360, 492, 492, 656)yds.

Notions: 6 buttons.

Tension: 22 stitches and 28 rows to 10cm/4ins square over stocking stitch using 4mm needles.

Measurements:

To Fit: Newborn (6-12 mths, 1-2 yrs, 3-4 yrs, 5-6 yrs)

actual chest measurements
46 (52, 59, 65, 71) cm / 18 (20½, 23¼, 25½, 27¾) ins

Length (from shoulder)
22 (24, 28, 32, 36) cm / 8¾ (9½, 11, 12½, 14¼) ins

Sleeve Length
15 (17, 20, 24, 28) cm / 6 (6¾, 7¾, 9½, 11) ins

Click on the following links for my How To videos that may help with this: Picking Up Stitches