Bifold closet doors, also called folding closet doors, are doors that split in the center of the opening and fold on either one side of the entrance (2 doors), or on both sides (4 doors).
These doors allow you to see the whole closet at once, as you pick your outfit to get dressed.
They are light and easy to open.
Often made of wood, they are sometimes louvered doors.
These doors do not conflict for the most part with the designing of drawers in the closet. Other than on the sides, you can place the drawers anywhere you like.