Want to be able to wear your tops without your nipples showing through? These work beautifully. They do advertise that you can go braless with these but I have not tried that. I bought two sizes, these and ones slightly smaller, which work great for me. The ones I'm selling have never been worn. They DO NOT use adhesive! They are silicone and curved, and they adhere naturally with your body heat. Tuck them in your bra and you will forget they are there. I love being able to wear a t-shirt or sweater and not have to worry when I get cold that anything will show through.