Mattress stitch
Side seams, sleeve seams, setting in sleeves.
How to do it
- Pieces right side facing you, edge to edge.
- With a tapestry needle, alternately catch the bars between the first and second stitches: one piece, then the other.
- Pull the yarn snug every 2–3 cm.
Tip
In stockinette the seam is invisible. That is why ribbing edges use 4k+2: symmetrical edges seam neatly.