We offer both flexible and stiff busks in our designs. It can vary from corset to corset, so be sure to check the product descriptions! Both busk designs offer different benefits. A stiff busk is most common and offers more of a firm feel to the corset. This busk is very rigid and often accompanies a stiffened modesty placket. If you are looking for extra support or simply prefer more of a firm hug then i recommend this busk. This busk has a more tubular side profile. The flexible busk is more suited to active lifestyles. If you find yourself moving a lot, bending, or sitting; this busk is meant for you. The flexible busk gives more of a contoured profile from the side, and allows for more flexibility in movement (while still offering support). The flexible busk is a fan favorite, but isn’t for everyone. Keep this in mind when making your decision. The flexible busk does have a tendency to point outwards at the front bottom edge if there is extra space in the hip. (during seasoning for example)