Cast on stitches
Multiple of 2, + 1 m., + 2 edge sts.
Rows 1 and all odd rows: knit all sts.
Row 2: 1 edge st., 1 purl., *1 st. slipped purl-wise* (yarn behind the st.) 1 purl.,*, repeat from * to *, end with 1 edge st.
Row 4: 1 edge st., (yarn behind the st.), *1 st. slipped purl-wise, 1 purl. (yarn behind the st.)*, repeat from * to *, end with 1 edge st.
Repeat these 4 rows.

