These are the Bye Bra reusable silicone nipple covers. Best silicone nipple covers today, tested by SGS. The Nipple Covers are a combination of a solid back with a soft front. This flower-shaped covers are perfect for everyday use. They hide and protect the nipples while wearing a bra, and no one will know you're wearing them. Made from a soft material, and gives the breasts a beautiful natural look. There are 4 Nipple Covers in one package.