Underwear · Advanced
Underbust corset sewing pattern
Boned waist corset that sits under the bust.
Choose your size
Each size has its own page with the full pattern, the cutting list and the measurements used.
Pattern preview
You will also need: interfacing.
Sewing instructions
General steps to sew this garment. Seam allowance is 1 cm (3/8") unless stated otherwise.
Supplies
- Coutil or cotton canvas
- Lining fabric
- Boning, busk and grommets
- Matching thread and the right needle
- Print the pattern at 100%, check the test square and cut the pieces following the cutting list. Transfer notches, darts and button marks.
- Join the panels in order, matching the numbers; press seams open.
- Stitch boning channels over the seams, insert boning cut to length and close the ends.
- Assemble the lining like the shell, attach it to the facings and bag it at the hem, leaving an opening to turn.
- Install the busk at the front and grommets at the back for lacing; bind the edges with bias tape.
Cutting list
| Piece | Cut | Material |
|---|---|---|
| Panel 1b | 2× | Interfacing |
| Panel 1b | 2× | Main fabric |
| Panel 2 | 2× | Interfacing |
| Panel 2 | 2× | Main fabric |
| Panel 3 | 2× | Interfacing |
| Panel 3 | 2× | Main fabric |
| Panel 4 | 2× | Interfacing |
| Panel 4 | 2× | Main fabric |
| Panel 5 | 2× | Interfacing |
| Panel 5 | 2× | Main fabric |
| Panel 6 | 2× | Interfacing |
| Panel 6 | 2× | Main fabric |
Measurements needed
| Measurement | How to measure |
|---|---|
| Underbust circumference | Around the torso, just below the bust. |
| Waist circumference | Around your natural waist, the narrowest part of the torso. |
| Hip circumference | Around the hips, at the level of the hip bones. |
| Waist to underbust | At the front, from the waist to the underbust line. |
| Waist to hips | Along the side, from the waist to the hip line. |
FAQ
Is the underbust corset pattern really free?
Yes. Every Kutopy pattern is free, with no sign-up and no watermarks. You can sew and sell what you make.
Which measurements do I need?
This pattern uses 5 body measurements. If you don't know them, pick a standard size or follow our measuring guide.
Does it include seam allowance?
Yes, it includes 1 cm (3/8") seam allowance (outer dashed line). You can remove it in the editor.
How do I print it at full scale?
In the editor pick your paper and tap "Download PDF". At home: numbered Letter or A4 pages you tape together. At a print shop or plotter: full size on one sheet, a 36" roll or large sheets. Always print at 100% and check the 10 × 5 cm test square.
