Jupiter Moon 3

I use primarily flat, plastic coated steel, or "spring steel." Sometimes I use hoop steel, hand cut and hand tipped. I almost always use this thick steel at the back where the grommets are. I primarily use pre-cut and tipped bones of a similar nature. It is flexible, and very comfortable, yet rigid enough so you will never have flipping or pinching. It also molds to your body over time, which helps your corset really mold to your body. Your corset will fit better every time you wear it for an extended period of time until it's like a glove! This is one reason you shouldn't let friends wear your corset, it will throw that fit all out of whack.

Steel bones are also very durable, I have never had one break.

Alternativly, I do occasionally use spiral steel, which is far more flexible. I prefer to keep the spring steel as my main boning, as spiral steel seems to almost fold into deep curves. I will use spiral steel on some outer curves, and on reversible corsets.

I NEVER use plastic boning for corsets. It's made more for tops, dresses, etc., and can never hold up a true corset. Plastic bones will warp, they dig into your curves, and they do not provide support. I do use plastic boning in neck corsets. Neck corsets do not need to be rigid.