I wear a DDD cup. When cinched they did the job of pulling them together but provide no lift or support. With adjustment they created an illusion of lift when I wore them with a strapless tight fitting dress. They are very sticky and reusable (have worn 3 times) and have not lost their tackiness during the night or after. I have lightly rubbed soap on them and rinsed off, let dry and put the plastic back on to retain the stickiness.