My Necessity Seamless Maternity Brief - Black
Over-bump seamless maternity brief — gentle bump support through pregnancy
Find My Size
Where are you in your journey?
This shapes your sizing recommendation.
Which trimester are you in?
This helps us account for how much your body is still likely to change.
What is your current bra size?
Even if it doesn't fit quite right — we'll use this as our starting point.
Band CupLet's get you fitted properly
Get expert help by email
Bra fitting is part science, part feel — and when your body is changing (pregnancy, postpartum, post-nursing) it can be tricky to figure out alone. Send us a few details and one of our Fit Specialists will email you back with a personalised size recommendation. It's free, no pressure to buy.
How does the band fit?
Honest answers give us the most accurate size.
How does the cup fit?
No gaps, no spillage — you know what we mean.
Your recommended size
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BRIEF FEATURES
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Seamless
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Maternity Friendly
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Soft
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Sustainable
stage guide
My Necessity Maternity Brief is Hotmilk's seamless over-bump maternity brief, made from soft viscose knit with gentle shaping for growing-bump support. The high-rise fit sits comfortably over the belly through pregnancy — especially the third trimester — and on through the weeks after baby is born, with full coverage and a smooth everyday feel. No digging, no rolling — just support that stays where you put it.
Key Benefits
- Features: Soft, seamless viscose knit with gentle belly shaping and Hotmilk logo detail
- Style Fit: High-waisted brief designed to sit comfortably over a belly
- Brief Style: Over-bump | full coverage bikini back
- Sizes: S/M = 10/12 | M/L = 12/14 | L/XL = 14/16
- Colour: Black — a timeless, confidence-boosting classic that pairs effortlessly with everything in your wardrobe
- Gusset: Cotton-lined for breathable comfort
- Fabric: FSC Certified sustainable viscose, polyamide, elastane, cotton
- Certification: Oeko-Tex Standard 100 certified fabrics and trims
*For hygiene reasons, briefs cannot be returned or exchanged.
Who is this for?
For mamas-to-be who want soft over-bump support and full coverage, with no digging or rolling. Made to grow with your bump through pregnancy and stay comfy long after baby arrives.
Complete the set
Part of our seamless everyday range — pairs with the My Necessity nursing bra range.
Eco
Made with FSC certified sustainable viscose, grown in responsibly managed forests. Soft, breathable and kinder to the planet — sustainable maternity essentials you'll reach for every day.
Free shipping applies to all orders throughout the UK over £50 with a 1-2 day processing time.
UK & EU Returns
Returns are complimentary with Checkout+ and are accepted within 30 days of delivery. You will have the option to either return for a refund or store credit.
Added Checkout+ at checkout? Your return label is on us, simply lodge your return and choose between a full refund to original payment method or store credit, free of charge.
No Checkout+? No problem, purchase your return label, then choose between a full refund or store credit with no additional fees or restocking charges.
Please note: the Checkout+ fee is non-refundable
Please see our dedicated Returns page for full details.
As a team of moms, we understand the importance of protecting the planet for future generations. We are committed to reducing our impact on the earth by creating beautiful products that are healthier for you, your family, and our environment. All Hotmilk garments are ethically sourced and go through rigorous testing to ensure the fabrics and hardware are safe and free from harmful chemicals.
Free shipping on orders over £50
Quick and easy 30-day returns
Worn, Loved & Shared
Common Questions about My Necessity Briefs
Everything you need to know about sizing, fit through pregnancy, and postpartum wear
S/M = 10/12 | M/L = 12/14 | L/XL = 14/16 | XL/XXL = 16/18
Fits true to size — choose your regular size
Seamless stretch moves with your changing body — between sizes? Size up
The My Necessity Maternity Brief is a full over-bump style — the waistband sits high over your growing belly rather than below it. This makes it ideal for the third trimester when under-bump styles start to feel restrictive, and for postpartum when you want gentle coverage over a healing tummy.
For an under-bump style, see the My Necessity Briefs 2-Pack
Yes — the seamless stretch adapts as your bump grows. The mid-rise fit sits comfortably over a growing belly without rolling or digging in.
Note: For hygiene reasons, briefs cannot be returned or exchanged. We recommend sizing true to size — if you're between sizes, size up. Or contact our fit team for advice.
