It has to be Lilypadz!!!
http://www.boots.com/en/LilyPadz-Silicone-Breast-Pads_1108698/I found that you could see other pads through your clothes, they were a pain to wash (you just rinse Lilypadz), and you didn't need to wear a bra with them! I didn't sleep in a bra, just a maternity nightie, and other pads would fall out. Lilypadz stick on, I love them!!!