Half Linen stitch

Cast on an even number os stitches.

Row 1 – colour A: *K1, yarn in front, slip 1 purl wise, yarn in back*; repeat until the end of the row.
Row 2 – colour A: purl.
Row 3 – colour B: K1, *K1, yarn in front, slip 1 purl wise, yarn in back*; repeat until the end of the row.
Row 4 – colour B: purl.

Yarn: Lisboa, 100% mercerized cotton (colours 13 and 14).