Option 2 - contact us here and we'll help you work out your size
Option 3 - try our virtual fitting service here for a consultation with our expert
Option 4 - measure at home with these guides.
These charts are only a guide.
Please measure with a bra on. When measuring, you need to measure quite tight for your underbust measurement, and then over the bust, you measure loosely. Otherwise your result will be incorrect. Any questions, we're here to help.
Bra Size Chart
My Necessity Bra Size Guides
Use the following size guides to fit our My Necessity Bra which is available in both regular cup and full cup sizes.
Sister sizing allows you to find your perfect fit. Sometimes after measuring yourself it is possible that your size may still need to be adjusted.
The following chart shows sister sizing for each bra size. All of the sister cups in the same row are the same size.
Sister sizing is like a seesaw. If you move up in the band, move down in the cup and vice versa. For example if you find that a size 34E fits well in the cup, but is too big around the band, go down to the next sister size in the row and try a 32F.
HM Collectives Fitting Quiz will help you find the right size. Our fitting Video is another great way to make sure you have the correct fit. Still unsure? Please email your measurements and details of how many months pregnant/feeding, we will be happy to help, we can help you avoid couriering bras back and forth. Nb. We encourage getting the size right first as it's more sustainable to send a package out once, than multiple times.
Free shipping applies to all orders throughout the UK and Ireland on orders over the value of £40!
All discount codes are valid for full price items only. From time to time we have fabulous sales or promotions, the use of further discount codes are exempt. Your discount code will work again once the sale is over.
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Allow 48hours for delivery. You can check the order status by logging into your Account
There are no duties on deliveries within the UK. Outside of the UK, customs duties and charges may vary, HM Collective is not responsible for any charges the recipient may incur.
All bras and sleepwear are returnable* for store credit, exchange or refund within 90 days to ensure you get the right fit. Please contact us for any fit questions to save you sending bras back and forth, we can definitely help with fit tips! It's also better for the environment to order once, so let us help. *Please see our dedicated Returns and Exchanges page for full details. FREE GIFTS must be returned or will be charged.
We offer free return shipping within the UK. Outside of UK return shipping is not refundable, however you will not be charged shipping for the exchange items to be sent to you.
We aim to process your exchange and store credits within 48hrs of receiving it at our collections warehouse. You will be contacted by email to let you know this has happened. Your store credit will be emailed or exchanged items will be sent out on the next available courier. Refunds will be processed once they have been forwarded back to us, allow 7-10 days. Peak holiday times may experience a slightly delay in processing times.
We have a generous 3 month policy for finding any faults, after this time frame it's considered fair wear and tear. Please email details and photos within 3 months to support@hmcollective.com
HM Collective gift vouchers and store credits normally expiry one year from date of purchase/issue.
If you have technical issues or find any errors on our website please contact support@hmcollective.com with details of the error and we can fix it.
Heroine Plunge - fine twin straps for increased freedom and enhanced support. Feminine lace with sheer mesh lining and a cotton side sling. Plunging yet supportive shape with the flexi underwire lift and Rose Gold featured hardware.
*Magnetic nursing clips are not suitable to use for mothers with pacemakers or defibrillators
Our model wears size 32D
FIT TIP: This style is firmer around the back than standard Hotmilk styles due to the stretch of the lace. It's slightly wide set but seems to work really well on most bust shapes as a relaxed fit.
FEATURES - plunge - side sling feeding support - flexi-wire cup support - non-padded - rose gold hardware - magnetic nursing clips twist to open - 6 hook and eye back fastenings for extending band size - sheer soft Lilac lace over sheer soft Lilac mesh lining - outer 90% nylon 10% elastane - lining 100% nylon - side sling 100% cotton - size range 32-38 band, D-G cups
Love this bra - full coverage yet still feels a bit fancy i love the magnetic clips - great for one handed fastening - however it does take a lot of fiddling to actually get them open? Not sure I've yet found the knack
Katie R.
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Sara E.
Feels like such a lovely feminine bra and the edges actually looked lovely under a few of my dresses. It took a few goes to get use the magnetic clip but actually it's easy once you understand how it works!
carly s.
It fits well and the shape is amazing. The clips can be tricky to undo especially when your holding your baby and I've pinched my skin when doing back up a few times but so much better looking and feel when you've had enough of nursing attire
Briana W.
Its a beautiful bra, and I love the look of it, but unfortunately I find the fabric quite itchy, and the seams run across the cup which can sit on the nipple and irritate, which isn't ideal for a maternity bra. I had expected there to be more lining under the lacy/mesh part to protect the skin from seams and itchy fabric. I have to wear with nursing pads, not for leakage but just to keep from feeling itchy all day.
Naomi M.
This bra make me feel good when I wear it. Not great if I am doing something really active though.
I sometimes find the magnetic clip difficult to undo when my baby is wiggling around but they are very easy to do up.
Shantala J.
One of my all time favourites! I have it in three colours now, I wear them so much. Initially I bought one as a stylish pick-me-up and was surprised to find how comfy they are! Fits my shape perfectly!
Vanda J.
Love this bra, so pretty and has a great shape. I have it in all colors except black as they sold out on my size.
The magnet on this one is upside down which really confuses me but isn’t a issue.
Alice O.
Very difficult to open and close to feed. Not supportive and generally uncomfortable and unsupportive for large boobs
Claire S.
This bra fits really well and I love the look of it. The material on the cups makes me itch like crazy though so I can't wear it.
Cate B.
Ordering bras is a real gamble online, so the return policy and process should be really simple—especially considering how your body has changed so drastically and there’s no real way to get fitted during a pandemic. None of the bras I bought fit and as a mother of a newborn I have not had a chance to follow their return policy, which is burdensome. My guess is I’ve already missed the deadline and now have expensive bras I can’t wear.
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