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 save you couriering bras back and forth.
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.
Please check your spam box first, if you still cannot find this please email us at support@hmcollective.com and we will give you all the information you need.
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! *Please see our dedicated Returns and Exchanges page for full details
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 Monsoon Blue lace over sheer Monsoon Blue mesh lining - outer 90% nylon 10% elastane - lining 100% nylon - side sling 100% cotton - size range 32-38 band, D-G cups
My boobs grew a lot, very quickly once I became pregnant, and I was super uncomfortable (and didn’t feel supported or pretty) in most bras. Decided to invest in this, first I bought the wrong size but returning for the correct size was easy. The bra is pretty, supportive and comfy, and I feel a lot more confident in maternity clothes now! Looking forward to wearing it for nursing, too. Really can’t fault it, so glad I bought it.
Laura B.
Cups are too wide set for my shape - which leads to boobs trying to escape if I lean forwards!
Victoria D.
Gorgeous bras that make you feel sexy whilst still being practical for breastfeeding and growing boobs! Would 100% recommend
Kristina D.
I love this bra! Since my boobs are on the larger side for a lot of my day to day activities I feel more comfortable with an underwire. This is one of the more comfortable and pretty nursing bras I’ve tried. The fit is great and I love the extended hooks on the back. Definitely going to get another color!
Abby M.
Love love love it?!!!
Having only ever worn moulded cupped bras before I was worried about this one. But it's so lovely. Beautiful and soft and sits just perfectly.
Hannah G.
I love this bra! The fit is awesome, supportive and super sexy! Clips take a few try’s but once you get the hang of them they’re great! This is my go to bra everyday now....I have it in every colour
Bridie F.
Perfect fit, true to size.
Stephanie L.
Love the colour! Fits great and is actually comfortable for a wire bra! Love the double straps!
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