A number of types of boning are available, and while poly boning and sew-on boning have their uses, it’s the 1/4 inch spiral steel boning that I rely upon the most. It’s nicely strong, and has the advantage of being able to be gently curved. It’s available pre-cut and tipped in lengths from 4” to 16”. You’ll need to create a casing for it, but that’s easily done with cotton batiste or something similar. Boning casing is available, but to my mind, it’s so bulky that you’re then faced with the problem of camouflaging it within the garment…
