These are incredibly soft, stretchy undergarments that could be used alone as a “night” bra or during day over existing bra for modesty or color contrast. This one is for the black, which is a soft microfiber like material that still fits even after accidental dryer incident. It helps me to wear tops and dresses that all seem to have the “modern” cut which is not appropriate for work or church. It has kept its vivid color even with washings gallore. I have the silver, also, and the silver is a bit more scratchy material but makes a great contrast piece.