This quote defines the elegance and sophistication of a woman who possesses numerous qualities and assets but chooses not to boast or display them openly.
"Classy is when a woman has everything to flaunt but chooses not to show it" suggests that a woman's grace and refinement come from her understated demeanor and modesty, even when she possesses admirable attributes.
The quote celebrates the idea of subtlety and grace, where a woman's confidence and self-assurance allow her to remain composed and humble without the need for excessive displays of wealth, beauty, or accomplishments.