You never know when you will wear formal wear.
Many people end up repurchasing the item because their body shape has changed and the size doesn't fit them when they try to wear it.
"The size didn't fit me," and "I had to buy a new one every time my body shape changed."
"Body shape and physical condition change easily before and after childbirth"
Listen to voices such as We reexamined traditional formal wear from scratch and developed ``black formal wear that can be used for 10 years'' with the idea that it can be worn by all ages and body types.