The corset is fully lined, plastic boning is used down the front, sides and back to stay the grommets, and light support. This is not a tight lacing corset.
Take your actual measurements and deduct 1-2" for a proper fit. Depending on how tight you want to wear it. It is better to leave a gap in the back and be too small than to not be tight enough and be too big, so be careful when measuring!How to measure