Milk-Savers are a product you use on the opposite side you are nursing on. They are made to catch that leaking milk so it can be saved and does not go to waste. My only concern with these is that they are large. Mind you that I am a very small woman so most things are large compared to me. I do however know that I will grow quite a bit between now and when the new baby arrives and that by then these will probably be the perfect size. I'm super excited to try it and hopefully feed my baby breast milk a little longer, and save myself some laundry since I won't have to change as often.