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.
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 2-3 working days for UK deliveries and 5-7 days for all other areas. Peak holiday times and other occurances can affect delivery times. 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.
Ambition Triangle is pure wirefree comfort perfect for both pregnancy and breastfeeding with a designed to be seen mesh framing and sheer striped band elastic to soften the look of coverage yet supportive shaping with contour foam cups. The option of standard or racerback straps with rose gold hardware.
*Magnetic nursing clips are not suitable to use for mothers with pacemakers
Our model is wearing a size 32D bra.
FIT TIP: This style fits a little small in the cup so if you're uncertain, go up a cup size to be safe.
FEATURES - plunge - a-frame discrete nursing support - wirefree cup support - contour cup - cotton lined cup - convertible racerback - rose Gold hardware - magnetic nursing clips twist to open - 6 hook and eye fastenings for extending band size - stormy steel grey with fresh ash grey mesh - cotton lined cup - outer 92% nylon 8% elastane - mesh 100% nylon - cup lining 100% cotton - size range 32-38 band, C-G cups
Jema C.
This bra is great I am pregnant atm and it has made wearing a bra so much more easier, no underwire but it still makes my breast look great
Megan L.
Really impressed with this bra; great quality and very comfortable.
Gemma S.
Love this bra, super comfy, loads of room to grow and shrink due to back strap. The only issue is the band at the bottom of the bra constantly rolls up which gets annoying after a while as it starts to dig in
Elizabeth R.
Gorgeous bra, just not a great fit for a fuller bust. Fit well when trying it on, so decided to keep but as soon as I do anything my boobs escape.
Jess T.
Definitely size up on this one, it’s a very snug fit and the fabric around you at the bottom rolls up a lot because of it. Other than that I love the style and the magnetic clasps are really handy.
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