Guide To Bra Sizes

We’ve made buying multiple sized bras a thing of the past!

Our amazing seamless maternity and nursing bras are designed to grow with you. So as your body and bust changes, your Mumba Bra responds with total comfort and flexibility. Meaning that you can wear it from any stage of your pregnancy right through to nursing.

We know what you’re thinking… “How is that possible?” Well the Mumba Bra is made from luxuriously soft, super stretchy and supportive fabric. So that they’re extremely flexible in expanding with your bump, but sturdy enough to give you support when you need it most.

One size will take most mums throughout her pregnancy. Your Mumba Bra can therefore be worn as a maternity or nursing bra.

So, what are you waiting for…come and join the Mumba Bra revolution.

Maya Seamless Bra Size Chart

Step 1

Determine your band size (i.e. 32, 34, 36, 38, etc). To do this, measure yourself around by bringing the measuring tape around your rib cage underneath the bust line, making sure the tape measure is flat and straight across your back. Pull the tape nice and tight (remember that a bra will stretch, but a tape measure doesn’t).
If you measure between two numbers for example 34.6 inches, then round off to the next whole number example 35 to get your band size.

Now refer to the chart below to determine your band size

Step 2

Now find your cup size by measuring across the fullest part of your bust (this time the tape measure doesn’t have to be tight). Measure your bust at its fullest part; make sure that the tape measure is even across the front and back and not twisted. Again, round off to the next whole number.

All you need to do now is to take away the rib band measurement from the cup size measurement. Each number or inch represents one letter. Refer to the table below.

For example, if your rib band is 32 inches and your cup measurement is 34 inches; 34-32 = 2, 2 equates to a B cup (1=A, 2=B, 3=C, ). So, your recommended nursing bra size is a 32B

Use your recommended size to see which Mumba Bra size you require, Small, Medium or Large. Example 32B would be a Small


Our sizing advice is a guideline. But take a look at these questions, which may help you when choosing your size.

If you’re currently pregnant and in the first trimester of your pregnancy, your breasts are likely feel tender and swollen. Your old bras may fit you, but if you’re experiencing a tingling sensation your old bras may feel uncomfortable against your skin. You can begin wearing your Mumba Bra at this stage. Choose a Mumba Bra size that caters for the bra size you’re currently wearing, and you want to be able to close your bra on the tightest hooks.

If you’re in second or third trimester, most of your growth at this stage is around your rib cage, this is because your body is expanding to make room for your baby to grow. Some women will also see their cup increase by one or two sizes too. If you’re buying your maternity bra at this stage, you can go ahead and choose the bra size you used to wear. The reason for this is because you’re only larger around your rib cage because of your baby bump. But from around 38 weeks your baby will drop down getting ready for birth, so you’ll feel some small release in your bras around your rib cage and furthermore after your baby is born. Your bra should fit comfortably on the loosest setting around your ribcage at this stage, to allow you to tighten it once your baby is born.

Many pregnant women experience breast changes, but plenty of others don’t – and that’s normal too. Some women’s breasts simply don’t change much during pregnancy; however, you will notice changes when your milk comes in after your baby is born. So, choose a Mumba Bra that accommodates your current bra size. The stretch and the flexibility in our bras, have already considered the changes in breast size.

Measure yourself and follow the size guide to choose the size of the bras that you are wearing now. Our stretchy fabric will allow for any fluctuations during breastfeeding.

The Mumba Bra has been designed to grow with you throughout your pregnancy. It’s advance fabric composition, makes it extremely comfortable to wear, that you won’t want to take it off! But just in case you have to, we advise that you buy a minimum of two, so that you have to wear and one in the wash for tomorrow!