I came on this site looking for nippits, bought the sample pack and found the nippits stick to your nipples. The Petal Tops are comfortable and work great. I am a 34D and have erect nipples 95% of the time (even when the temperature is 90). I wear these until they start to come off. I wear them to bed, in the shower, and work a full farm day in them. I didn't realize how much my nipples bothered me until I started wearing Petal Tops. No more pain and no more trying to hide under loose fitting clothes.