Magic Plus Size Strapless Seamless Push Up Bra
Magic Plus Size Strapless Seamless Push Up Bra
Size Guide
Bra Sizing Guide
Getting the right fit doesn't need to be hard, let us help you make sure you get the right fit.
Band Size
Okay — breathe in, then out, and hold. Wrap a tape measure around your chest at band level and take a look.
Odd number? Add 1. Even number? Add 2.
For example — if you measured 33” and add 1, you get 34”. This is your band size! We recommend measuring this part in Inches and converting it to CMs.
Cup Size
Breathe in again, then out, and hold.
1. Wrap a tape measure around the fullest part of your bust and take note.
2. Round to the nearest whole number. This is your bust size!
3. Subtract your band size from your bust size and voila! This determines your cup size.
For example — if your bust measured to 36, you would subtract 34 from 36 to get 2!
| INCHES | 1 | 2 | 3 | 4 | 5 | 6 |
| CUP SIZE | A | B | C | D | DD | DDD |
Put your band size and cup size together and now you have your bra size!
Our example comes out to be a 34B.
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Feel the difference from the moment you hook it. Your shoulders are free, your chest stays lifted, and the bra stays exactly where it should.
You deserve a strapless bra that actually works on your body. Thousands of plus size women have finally stopped dreading strapless dresses and special events.
Plus size sizing, designed for fuller busts, not scaled-down guesswork.
This bra runs in XL through 4XL based on your underbust measurement. Order your usual plus size. The crossback band and molded cups are engineered to deliver lockdown support and lifted shape across the full size range, so your normal size gives you both security and comfort.
Between sizes? Size up. The crossback structure still grips firmly in the larger size, just with a more relaxed band feel.
Check the size chart to confirm your underbust measurement. And if it isn't perfect? Hassle-free returns, no questions asked.
Description
Description
Stop Blaming Your Body. Your Current Bra Was Never Built for You.
You know the routine: buy the strapless bra, spend the night yanking it up, end the evening with a bra around your waist and red marks in your ribs. Then you wonder if you're just the wrong shape for strapless. You're not. The bra is the problem.
Here's what's been holding you back: most strapless bras are designed for a 34B and "scaled up" for plus sizes. A single horizontal band can't fight gravity on a fuller bust, so it slides within minutes.
Our Crossback Lockdown system fixes this at the structural level. Two wide bands cross over each other and anchor at side hooks, gripping your back from two angles instead of one. The downward pull of a fuller bust gets redirected sideways and upward, where the bra holds. Pair that with molded push-up cups that lift from underneath, and you get real shape, real security, zero compromise.
Strapless dresses without dread. Push-up shape without underwire pain. A bra you forget you're even wearing. Finally engineered for your body, not in spite of it.
Fabric & Care
Fabric & Care
Fabrics:
75% Nylon, 25% Spandex, performance-engineered, comfort-obsessed.
What This Means for You:
The high-spandex blend gives you four-way stretch that grips without squeezing, so the crossback band stays locked in without leaving red marks or cutting off your circulation.
Nylon adds the smooth, second-skin feel that makes the scalloped edges disappear under bodycon, silk, and slinky fabrics. The combination is what lets the bra hold a fuller bust securely while still feeling soft enough to wear all day.
Care Instructions:
Hand wash cold or machine wash cold in a lingerie bag. Hang dry. Do not bleach, do not tumble dry, do not iron.
Pro tip: hand washing extends the life of the elastic and keeps the crossback tension intact.
Why It Matters:
Quality construction means your bra holds its shape, support, and grip wash after wash. The bands keep their crossback tension, the cups keep their structure, and the lockdown that made you buy it stays exactly that. This bra is built to last, not to disappoint you in three weeks.
Shipping and returns
Shipping and returns
Shipping
We offer FREE Tracked shipping on orders over £25 📦
Orders below £25 will be charged a flat rate of £3.95.
We process orders between Monday and Friday. Please note that we require 2 to 3 working days on average to fulfill your order before dispatching it. Rest-assured we are doing everything in our power to get your order to you as soon as possible! Once your order is dispatched, depending on your country or region, estimated delivery time is between 4 to 10 business days. Please consider any holidays or global events that might impact delivery times.
Returns
We offer hassle-free returns to our nearest dispatch center. To start a return just contact our support team at support@magicbra.co.uk and we will make the process easy and effortless.
For health and hygiene reasons, we do not accept returns on undies or used items, and they are not eligible for refunds.
Why Buy From Us?
Why Buy From Us?
Size guide
Size guide
Getting the right bra fit is easy! Just follow these two simple steps.
Step 1: Find Your Underbust Measurement
- Ask a friend to help measure, or stand in front of a mirror.
- Relax your arms by your sides.
- Wrap a measuring tape snugly around your ribcage, just below your bust.
- Make sure the tape is straight and level all the way around.
- It's best to do this without a bra, or with a strapless, unpadded bra (make sure the tape isn't measuring over the bra itself).
- This measurement is your UNDERBUST size.
Step 2: Find Your Bust Measurement
- Put on a strapless, unpadded bra.
- Wrap the measuring tape around the fullest part of your bust (usually over your nipples).
- Hold the tape firm but not too tight, making sure it's straight across your back and parallel to the floor.
- This measurement is your BUST size.
Ask a question
Ask a question
Why You'll Love It From Day One
Stays Put All Night Crossback Grip
Two-Angle Lockdown
Real Push-Up Lift
Invisible Under Everything
Three-Hook Custom Fit
Wireless, Zero Red Marks
We Get These Questions A Lot
Supportive answers for your most common bra dilemmas.
Will this actually stay up on a fuller bust, or is this another "scaled up" bra that slides down?
Yes, it stays up, and the crossback design is exactly why. Most strapless bras rely on one horizontal band that gets overwhelmed by gravity within minutes on a fuller bust. Our crossing bands grip from two angles and anchor at side hooks, redistributing weight across your entire upper back. It physically can't slide the way a traditional strapless does.
I've sworn off strapless bras because they always end up around my waist. What makes this different?
We hear this constantly, and we get it. The reason this one works is structural, not a marketing claim. The wide crossing bands create two anchor points instead of one, so the downward pull of a fuller bust gets redirected sideways and held. You don't need to tug, hoick, or readjust all night because the bra has nowhere to slide to.
Will the band dig in or leave red marks on my ribs?
No. There's no underwire and no boning, so nothing is poking into your sides. The wide crossback design distributes pressure across a much larger surface area instead of concentrating it on one tight band. You get firm hold without the red trenches, bruises, or end-of-night discomfort.
Does it really give push-up shape, or will I look flat or pointy?
Real push-up shape. The molded cups lift from underneath and hold a rounded silhouette, so you get genuine cleavage without the pointy or uniboob look that ruins most strapless bras. The cups are structured but soft, so the shape stays natural, not forced.
Will it show under tight or thin clothing?
No. The scalloped, raw-cut edges sit flat against your skin instead of creating a visible bra line. There are no seams, no ridges, and no telltale outline through bodycon, silk, or slinky fabrics. It's designed to disappear under whatever you put on top.
I'm between sizes. Should I size up or down?
Size up for comfort. The crossback structure grips firmly across the size range, so you'll still get excellent lockdown support in the larger size, just with a more relaxed band feel. And if it isn't right, hassle-free returns, no questions asked.
What's your return policy? I've been scammed by online bra shopping before.
We get it. Online bra shopping, especially in plus sizes, is risky. That's why we offer hassle-free returns if the fit isn't right. No drama, no judgment. We want you to love it from day one, but if it isn't your bra, we'll make it right.
Because Magic Bra isn’t a promise — it’s proof. 75,000+ women wear it, love it, and say it’s the best switch they’ve made.
Customers praised this strapless bra for exceptional comfort and support, especially for larger busts. "Best strapless bra I've ever owned!" said shoppers. The silicone grip keeps it securely in place without slipping. Soft, breathable fabric and true-to-size fit were highlighted. A few noted it doesn't provide massive lift but offers reliable everyday support at excellent value.
- 5 stars: 28 (74%)
- 4 stars: 7 (18%)
- 3 stars: 3 (8%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
The cup shape is really flattering, and I’m well impressed that it doesn't slip or shift about. It stays exactly where you want it!
The fit is absolutely spot on! It's such a relief to find something that actually holds the girls perfectly in place.
They’re absolutely spot on! Honestly couldn't ask for a better fit.
I'm seriously impressed! As a DD lady, it held the girls up perfectly without any sagging or that annoying squashed, flat look. It's so rare to find something that actually supports without just flattening everything down total game changer!
The fit was absolutely spot on really supportive and dead comfy!
I’m a big girl I wear a 4XL and I bought this to pair with an underbust corset for a low cut cosplay. Honestly, it is SOLID.
If I were going to use the straps, I’d probably want something a bit more substantial than the ones it comes with, but as a strapless bra, it works a treat! I almost shelled out a lot more for a "big name" brand, so I’m dead chuffed I took a gamble on this instead.
I wore this strapless bra all day and was pleasantly surprised by how comfy and secure it felt. It stayed perfectly in place without slipping, gave me a nice smooth look under my clothes, and didn't feel at all restrictive.
The material is lovely and soft and breathable, so it’s easy to forget you've even got it on. Overall, it's a cracking option for an everyday strapless bra.
This is the first strapless bra I've actually bought! I’ve tried on so, so many in department stores over the years and always walked away disappointed. I took a bit of a gamble ordering this one based on the photos and reviews, but I’m so glad I did.
I’m a 3XL usually a 42DDD in other styles and while you’re obviously not going to get the same level of support you'd get from straps, this is dead comfy and stays exactly where it should. The value is absolutely brilliant, too.
The quality is absolutely spot on! I'm really impressed with how well it's made.
This strapless bra is incredibly comfortable. It offers a surprising amount of support, and the fabric is really stretchy, soft, and breathable. I find it gives me a proper lift and looks great under my clothes I absolutely love it!
I absolutely love this bra! It’s so comfortable, and honestly, I’d be buying loads more if this one didn’t already tick every single box. It literally does everything I need!
Extremely comfortable! It didn't slip down like some do, so I didn't feel the need to keep hoicking it up all day. Honestly, it felt like I wasn't wearing anything at all.
Great. It was really comfy and didn't give me any trouble. I wasn't 100% sure if I'd got the right size, but it actually fits quite well and does the job!
This is actually brilliant! As a member of the "big chest committee," it’s a nightmare finding a bra that actually holds the girls up, but this one does wonders. I love how SOFT it is; there's no wire, yet it actually provides loads of support.
It’s super breathable and doesn't show under my clothes at all. It’s survived plenty of washes now, which proves the quality is there, and the sizing is spot on! Really durable and the material is lovely and thick.
Best strapless bra I’ve ever owned! It’s really comfortable and doesn’t slip down or dig in at all. It doesn’t give a massive amount of push up or lift, but it provides proper support without that annoying "strapless bra" feeling. The price is a total bargain as well!
This bra is everything! Comfortable, stays up, and looks great. As a new mum, I’m still carrying a bit of extra weight, but the biggest change has been the shift in my breasts (heading south!). Even though I’m not huge (C cup), they definitely aren't the perky girls they once were.
While this bra isn't a miracle cure for that, it does settle them comfortably and looks brilliant under clothes without any gaps or lines. For women who are ready to move on from those uncomfortable, unreliable shelf bras that need constant hoicking up, this is the one.
This is quite possibly the best strapless bra I’ve ever come across. It’s really comfortable but offers proper support. I’m a 38DD and it fits brilliantly. I originally bought it for my holiday, but I’ll definitely be ordering more now.
comfy and didn't budge an inch all night. Exactly what I was after, and a cracking price too!!
I'm genuinely amazed! I was fully expecting another disappointment, but I’m happy to say this bra is brilliant. It’s really supportive and dead comfy I’m so glad I took a punt on it and placed the order.
I'm dead chuffed with this strapless bra. The quality is much better than I expected and the material feels lovely and soft but still quite sturdy. It stays in place really well and offers proper support for a non wired bra, even for a larger bust.
The fit was spot on for me and it gives good coverage without digging in at all. It looks nice and smooth under my clothes and works a treat with strapless tops and dresses. I've worn it for hours and it stayed comfy the whole time. Overall, a brilliant buy.
So comfortable I’ve actually got rid of all my other bras! I’m a 3XL and, honestly, I wasn’t expecting much. I’ve tried other brands in the past that I either sent back or just never wore because they didn't fit right or give me the support I needed. This bra is amazing! I loved it so much I’ve already bought another two.
One of the main reasons I went for Magic Bra is that they offer a massive range of sizes that you just don't see with other brands. I already own a couple of their bits and absolutely love them.
The bra is lovely and feels really sturdy. The fabric is soft and stretchy, yet it still feels spot on with the sizing. It doesn't give you a massive amount of definition, but you're definitely supported and the back looks really smooth! It stays perfectly in place, too really impressed!
GET THIS BRA. Honestly, I was a bit hesitant because I wasn’t sure if it would actually fit. I’m a bit of an awkward size my breasts tend to go out to the sides rather than forward (think of a middle aged bloke lol). I’ve got really broad shoulders, weigh between 23 and 24 stone, and I always struggle to find anything that works.
I’ve actually been going braless for the last 6 or 7 years because it’s such a nightmare finding something comfortable. Usually, putting a bra on feels awful everything just feels weighed down. This bra, however, feels lovely. It doesn't force my breasts together in a tight squeeze, it passes the bounce test (the full tiptoes to heavy drop and they're a heavy load lol!), it’s not at all uncomfortable, and it actually keeps them in place.
It’s a lovely design and feels very gentle when you’re wearing it.
It’s such a comfy bra. The sizing is actually quite generous, but it makes the back look much more flattering and gives the bust a proper good lift.
I just got this through the post and, honestly, I was bracing myself for disappointment like every other bra I've tried. But this one is wonderful!
I’m actually quite impressed with this bra. I’ve been seeing ads for it everywhere but was skeptical it could offer any decent support or shape for a larger bust without an underwire.
I normally wear a 40DD, so I ordered the 2X and it fits brilliantly. It’s incredibly comfortable and supports and shapes the girls nicely. I’ll definitely be getting some more.
Sooo Comfortable and Supportive!
WOW, I should’ve picked these up years ago! They look just like a regular bra under your clothes even with low cut tops.
Really good product, dead comfy
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