I'm using spiral steel boning, which you can buy in many lengths here. You can also buy longer steel boning and cut it down, just make sure to get end caps to cover up the raw edges. (See my video on this here.)
You can also use rigilene, a polyester boning sold by the yard.
You'll need to slightly singe the ends of rigilene to keep it from poking through your garment.
There are different ways to approach this technique, and here's the one I mashed-up after much reading and thought. Here's what you'll need for this particular tutorial:
- cotton flannel for the waistband underlining
- horsehair canvas or other sturdy sew-in interfacing for the waistband facing
- silk organza for the waistband facing
- spiral steel boning or rigilene boning
I started by using cotton flannel to underline the fashion fabric. I'm using a thin suiting, and the flannel cushions the boning to keep it from showing on the outside of the skirt. If your fabric is thick or textured, you can skip this step. (If you're not sure, test some layers of fabric and boning in your hands and see if the boning shows through.) Cut out one set of waistband pieces in the flannel.
Now we're going to apply interfacing to the waistband facing. It will be a double layer of horsehair canvas and silk organza, which will be stitched together to create boning channels. (This is similar in technique to my yellow dress boned lining, shown in this post.) Cut out a set of waistband pieces in horsehair canvas (or another sturdy sew-in interfacing) and another set out of silk organza (or another thin fabric like cotton batiste).
I hope this all makes sense! Let me know if you have questions.