Instructions are given in four sizes, 0-3 months, 3-6 months and 6-9 months and 9-12 months.
The rompers are knitted bottom up. The back and front are worked to the top of the leg openings as separate pieces and are joined to knit the body in one piece. The front and back are separated again to work the front and back bib sections. Once the side seam is completed, stitches are picked up around the leg openings to work the leg borders. This pattern is deceptively easy as there are only 4 rows. This design is suitable for a beginner.

Any 4-ply yarn is suitable for this pattern - just check the yardage (meterage) and tension