How to choose a bra to wear 1/2 cup or 3/4 cup or full cup? What is the function of each?

If the pink bralette is deformed, you must not wear it. Generally speaking, the life of an mesh bralette is 6 months (changing to wear). Proper maintenance will extend it, but the longest will not exceed a year. You can buy more pieces and change push up bra. Wear it for longer.