Duplicate Stitch (Swiss Darning)
Duplicate stitch — also called Swiss darning — is a way to add coloured details to finished stockinette by sewing over individual knit stitches with a tapestry needle and contrasting yarn. The added stitches sit invisibly on top of the existing stockinette.
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Method
Thread a tapestry needle with the accent colour. Working from the wrong side, bring the needle up at the base of the stitch you want to cover. Trace the V of the stitch with the needle: up one side, across the top, down the other side. Pull through. The accent colour now sits exactly on top of the original stitch.
When to use
Adding small accents (eyes on a sweater bear, polka dots, tiny letters) without the complexity of intarsia or stranded knitting. Fixing a colourwork mistake by covering it. Adding embellishments to finished knitting.
In partnership Tools and supplies that make this technique easier.
Limitations
Only works on stockinette. The duplicate stitches add a small amount of bulk where they sit, so do not use over large areas — for blocks of colour, intarsia or stranded knitting is more elegant.
Yarn matching
Use the same weight and fibre as the original yarn for the most invisible result. A single ply of duplicate stitch in a different fibre will look textured and may not lie flat.
Abbreviation reference
| Abbreviation | Meaning |
|---|---|
| MC | main colour |
| CC | contrast colour |
Tips
- Use a blunt tapestry needle to avoid splitting the original yarn.
- Trace the V of each stitch carefully — the duplicate stitch must sit exactly on top of the original.
- For small embellishments, duplicate stitch is faster than intarsia or Fair Isle.
In depth
Duplicate stitch is structurally a re-knitting of an existing stitch in a new colour, sewn on after the fact. The sewn-on stitch sits exactly on top of the original V, hiding it completely. This is why duplicate stitch is invisible up close and indistinguishable from intarsia from a distance.