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.
My Necessity REGULAR is designed for the smaller bust from an A to an E cup. If you are bigger than an E cup, purchase our FULL CUP style. S-XXL sizing is most similar to your clothing sizing. S = size 10, XXL = size 18.
A luxurious multi-fit seamless bra with removable foam cups and a side sling support. The perfect style for your hospital bag, for sleeping in and light exercise.
This is a soft support style with no seams for the ultimate in comfort, and a flexible fit that will expand 2-3 cup sizes to offer total comfort and flexibility for your changing size throughout your pregnancy and for postpartum changes.
Our model is wearing a size S Regular Cup (she wears a 32D bra and size 10 clothing).
FEATURES - full cup coverage - side-sling skin-on-skin contact nursing support - wirefree cup support - easy dual cup fitting - removable contour cup - one-handed drop-down nursing clips for breastfeeding - 6 hook and eye fastenings for extending band size - inner panel for additional support for a Full Cup - rose colour - outer & lining 92% polyamide 8% elastane - S/32-34, M/34-36, L/36-38, XL/38-40, XXL/40-42 multi-fit A-E cup
All our garments are made with you in mind. Our fabrics and accessories are free from harmful chemicals and are all Oeko-Tex® Standard 100 Certified.
Maia W.
Bra is comfortable, love the fit and great colour! I’m a 32E fits round the back on the smallest setting and cup just fits - have been struggling to find a bra with a small enough back and big enough cups so this is great. Good support for everyday wear but not enough for anything more then a brisk walk. Slightly annoying that the elastic band inside the fabric around the chest rolls over on itself. Overall really like the bra, fix the elastic problem and would be great!
Claire S.
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