Knitted in a multiple of 4, + 3 sts.
Row 1 – RS: Knit 3, * slip 1 wyif, knit 3; rep from * to end.
Row 2: Knit 1, * slip 1 wyif, knit 3; rep from * to last 2 sts, slip 1 wyif, knit 1.
Repeat Rows 1 – 2.
Bind off in a knit 3, purl 1 rib.

How to bind off: Knit 2, slip the first stitch over, knit 1, slip the first stitch over, * purl 1, slip the first stitch over, (knit 1, slip the first stitch over]) 3 times, rep from * to end of row.