The likelihood is that you will need two, three, or more pieces of the same clothing. Something may alter the clothing while filming, both on purpose or unintentional, and therefore you will need several for different takes. If the character needs to be wearing the same garment in more than one scene then you will likely have to take time to wash them, which will also make them unavailable. If it is not possible to get more than one of the same items of clothing then you need to take special care not to affect the garment while filming.