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.