The set consists of: Hat for baby with garter stitch, wave pattern and earflaps. Wrap-around jacket and trousers with garter stitch and lace pattern. The set is knitted in DROPS Baby Merino. Free pattern by DROPS Design.
I think it's Wave of honey stitch Wave of Honey Stitch (Cross one in back) (Cross one in front) cast on 50 Row 1 & Odd Rows: (wrong side): K P K Row K across, end K Row Row K across, end K Repeat Rows for pattern