A concealed zip keeps its spiral behind your fabric. From outside you see a closed seam plus one small pull — exactly what a dress or skirt wants at its back when a fastening should stay out of sight.
Dark grey reads softer than black here: over grey, charcoal or muted marls it disappears without drawing a hard line.
It goes in before you close your side seam, using a concealed-zip foot or a narrow zipper foot. Rolling its spiral flat lets your needle run right alongside. That is all there is to it.
What Reißverschluss Nahtverdeckt 20 cm, Dunkelgrau is suitable for
- Dresses, skirts — seams read as closed.
- Cushion covers, because nothing bulks up.
- Fine fabrics, since this spiral stays light.
Frequently asked questions
Why does this zip stay invisible?
Because its spiral faces inward while fabric meets above it. You stitch right alongside that spiral, never out on its tape. Your seam therefore closes over everything, leaving only a pull in view.
Do I need a special foot?
A concealed-zip foot helps, since it rolls each spiral open while you sew. A narrow zipper foot also works, provided you press that spiral flat first, then sew slowly along its length.
Can I shorten it?
From below, yes. Work several firm bar tacks across its spiral, cut underneath, then no pull can slide off. Shortening from above will fail; a stop sits fixed at that end.
Is this zip separating?
No, both ends stay joined. Jackets want a separating zip instead; this one suits seams that remain closed, so dresses, skirts, trousers or cushion covers are its place.
