Our Silver Nursing Cups come in two sizes — Regular and Large. Both soothe and protect in exactly the same way; the only difference is the diameter, so it simply comes down to comfort and fit.

The cup should sit over your nipple and the area right around it, with the rim resting gently on the skin rather than pressing in. It doesn't need to cover your whole areola — just the nipple and the tissue around it, where friction happens.

Choose by your current nursing size, not your pre-pregnancy size. Breasts usually grow during pregnancy and again once your milk comes in, so go with how you are now.

As a general guide:

Regular — cup sizes A to C, or an areola around 45mm (4.5cm) or smaller.
Large — cup sizes above C, or an areola larger than around 45mm (4.5cm).

No need to measure exactly — your current bra cup size is the easiest guide, and the areola size is just a rough check (45mm is a little under 2 inches).

Between sizes, or not sure? Go with Large. A slightly larger cup is more comfortable, while one that leaves marks or pinches is too small. It's also perfectly fine to wear a different size on each side, and Large is the safest choice if you're buying as a gift.

Shop with confidence. If the size isn't right, we offer a 90-day return policy with free exchanges. Any questions, email us at support@mammabump.com — we're always happy to help you choose.