Think of a bustier as a bra for your whole torso. Knowing that, there's no need to shy away from wearing a strapless bustier. Even the largest busts are held in perfect place by the under wires that are built into every bustier. Often, back boning and even back lacing help to pull your whole look together. Strapless bustiers are also a great to choice to wear under strapless gowns - for any bust size or figure.