This hooded romper is knitted from the hood down, the textured hood design is a simple two-colour slip stitch that is easy to do. The pattern has line-by-line instructions for the complete set of Romper, hat, and booties.
The whole set is Knitted back on forth on straight needles.

The size depends on the yarn and needle sizes used as listed below

Materials
21-22” Doll / 0-3m Baby
3.25mm needles (smaller)
4mm needles (Larger)
200grms Double knit Wool

19-20” Doll/New-born baby
3mm needles (smaller)
3.75mm needles (Larger)
150grms Double knit Wool

16-18” Doll / Small New-born
2.75mm needles (Smaller)
3.25mm needles (Larger)
120grms 4-ply wool