SoftShells™ help draw out flat/inverted nipples with soft, flexible backs. "Designed specifically to help with sore or flat/inverted nipples: Provides protection until nipples heal. Soft, flexible backs: Superior comfort.
I bought these to catch milk from the side that I am not nursing on so that I could save any milk that leaked. They work great! I just have to remember not to bend over while still wearing them...I've spilled a lot of milk :(. They are also great for keeping clothing from touching sore nipples so that they can heal.