Nipple covers, also known as nipple pasties or nipple stickers, are small adhesive patches that are worn over the nipples to cover them and create a smooth, seamless appearance under clothing. They are often made from silicone, fabric, or foam and are designed to be worn with or without a bra.

Nipple covers can be worn for a variety of reasons, including to prevent nipples from showing through clothing, to add a layer of modesty, or to enhance the appearance of the breasts. They can be worn under a range of clothing, including tops, dresses, and swimsuits, and are available in a variety of shapes, sizes, and colors to suit different preferences and needs.

It's important to note that nipple covers are a personal choice and should be worn for comfort and practicality, rather than to meet societal expectations or to sexualize the body. It's also important to follow the instructions provided by the manufacturer to ensure proper use and care of the nipple covers.