Sewing pattern to download, also existing in a paper sheet version here

Button-front romp with elasticated back

Sizes :birth, 3, 6, 12/18 months

Difficulty: 2

Footage in 140cm wide:
0m45 for birth,
0m50 for the 3 month,
0m55 for the 6 months,
0m65 for the 12/18 months.