This little Romper is worked bottom to top in Stockinette stitch.
First you work Front and Back separately and then join and continue in the round.

Pattern comes in 4 sizes between 0-24 months.
You can download it in English or Swedish.

I have used Colin, from Järbo Garn in Sweden, a lovely yarn which is a mix of cotton and linen. It is soft and has a beautiful texture.
Other options can be Tilda, cotton and acrylic, from Svarta Fåret in Sweden.

You will need straight needles and circular needles US2,5 and US4,
3 buttons, markers, a tapestry needle and a crochet hook 3 mm.
The hook is for the crochet edge that you will work along the leg openings and the button bands.

Enjoy!
Sanna