This Aran Weight yarn creates light cardigan akin to the Bosbury in my range, designed with the toddler in mind, but smaller sizes are available.

It has a shirt tail at the back to drape elegantly. Knitted top down in one piece and has options for long or short sleeves, with only sleeve seams so very little sewin.
No picking up for button bands they are part of the main knit.

Knitted on 5 mm (US8) needles, this sample is in Rowan Purelife Boulce FINE and Rowan Frost, but yarn knitting to the same gauge will work perfectly well.

To fit 18 to 30 ”, with some positive ease the overall
finished sizes approx 21” to 33” inch, length in back 14” to 20”.