Invisible Tummy-Control Shaping
Excellent 4.8 | 30,000+ Women

A Flat, Smooth Tummy the second you put it on.

The Smoothline Brief™ wraps your waist in 360° cross-band shaping that smooths the tummy the moment it's on — then disappears under everything you wear. Soft enough to forget by noon.

Shop Risk-Free — 90 Days
90-Day Money-Back Guarantee · Free Size Exchanges
Invisible Under Clothes Anti-Roll High Waist 360° Stay-Put Fit
4.8 / 5 — 9,800+ reviews

They stopped holding
their breath

They'd tried the shapewear that rolls down by lunch, the kind that leaves marks, the kind you can't sit in. Then they found the Smoothline Brief™. Most of them say the same thing — they forget it's on.

Based on 9,800+ reviews

They tried the Seryova™ Smoothline Brief. They never looked back.

Nicole B. — Seryova Postpartum

Nicole B. — 33 years old

★★★★★

"Four months after my son and nothing in my closet sat right anymore. These hold everything in without the squeeze — I put them on at 7am and I'm still comfortable at dinner. I stopped reaching for the baggy stuff."

Size M · Bought 2 items · United States

Sharon W. — Seryova Menopause

Sharon W. — 58 years old

★★★★★

"My shape shifted after 55 and I'd quietly stopped buying anything fitted. The wide band doesn't roll or bite into my waist — which is what every other pair I own does by lunchtime. I bought a second one the same week."

Size XL · Bought 3 items · United Kingdom

Diane F. — Seryova Special occasion

Diane F. — 61 years old

★★★★★

"I wore them under a satin dress at my son's wedding. Not one line showed in any of the photos, and I never once slipped off to adjust anything. I danced until midnight and forgot they were there."

Size L · Bought 2 items · United States

Priya N. — Seryova Bloating

Priya N. — 36 years old

★★★★★

"By 4pm my stomach is usually twice the size it was that morning, and it used to decide my whole outfit. These keep everything smooth on the bad days too — firm, but never uncomfortable."

Size M · Bought 3 items · Canada

Kayla S. — Seryova Postpartum

Kayla S. — 29 years old

★★★★★

"I ordered these for one wedding and now I wear them to the grocery store. First time in two years I've felt flat under a dress without holding my breath. My sister ordered a pair after seeing the photos."

Size L · Bought 2 items · United States

Yvonne T. — Seryova Menopause

Yvonne T. — 52 years old

★★★★★

"I'd written off shapewear completely — everything I tried either rolled down or left marks on my skin by evening. These stay exactly where I put them, all day, and I genuinely forget about them."

Size XL · Bought 4 items · Australia

Amara O. — Seryova Everyday

Amara O. — 34 years old

★★★★★

"No more spillover at the waistband of my jeans. Completely invisible under a fitted top, and they don't shift once — even when I'm on my feet all day at work."

Size M · Bought 2 items · United States

Renata C. — Seryova Postpartum

Renata C. — 40 years old

★★★★★

"Two babies and I'd quietly stopped wearing anything fitted. These gave me back a smooth line under my clothes — the small thing I noticed is that I stopped angling away from the camera."

Size M · Bought 3 items · Ireland

5 stars
Rated 4.7 based on over 9,800 reviews

Smoothline Brief™

High-Waisted Tummy-Control Shapewear

  • Instant flat tummy smooths the muffin top the second you pull them on #1 Seller
  • Stays put all day anti-roll high waist — no digging, no rolling No Rolling
  • Invisible under clothes smooth, invisible edges — no VPL, no lines Smooth
  • 360° all-around shaping opaque, breathable second-skin comfort you forget you're wearing 360°
  • Postpartum & menopause friendly gentle, firm, confidence-building support
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Loved by women everywhere, under 2% return rate
Anti-Roll Waistband
Invisible Seams
360° Compression

90-Day Money-Back Guarantee. Love them or full refund — no questions asked.

Most shapewear works by squeezing everything in one direction. The Smoothline Brief™ uses diagonal cross-bands that wrap the waist and abdomen, so the pressure spreads evenly instead of concentrating in one tight ring.
360° Cross-Band
Anti-Roll Waistband
Second-Skin Knit
No Panty Line
1
360° cross-band shaping. The diagonal wrap flattens the tummy and smooths the muffin top the second you put them on. No waiting, no routine.
2
Anti-roll high-rise band. A wide band sits under the ribcage and stays there. It doesn't roll down and it doesn't dig in, so the shaping never slips out of place.
3
Invisible under clothes. Smooth, seamless edges disappear beneath fitted dresses and jeans. All anyone sees is a clean silhouette.
MorningYou put it on like a normal brief.
AfternoonIt doesn't roll or move.
NightFrom work to dinner, it stays perfectly in place.
Fabric: buttery-soft, breathable second-skin knit with 4-way stretch
Waistband: wide high-rise band that never rolls or digs
Edges: smooth, with no visible panty line
360° cross-band: diagonal tummy-control shaping
Opacity: fully opaque, even under stretch
Care: machine wash cold, hang to dry. Do not bleach or tumble dry.
Compression fit designed to sculpt and support. Each size is matched to your body measurements, not to your usual clothing size.
Between two sizes? Size down for firmer control, or stay true to size for everyday comfort.
XSUS 0–2 · UK 4–6Waist 23.5–25" · Hips 33–35.5"
SUS 4–6 · UK 8–10Waist 25.5–27" · Hips 35.5–38"
MUS 8–10 · UK 12–14Waist 27.5–29.5" · Hips 38–40"
LUS 12–14 · UK 16–18Waist 30–32" · Hips 40–42.5"
XLUS 16 · UK 20Waist 32.5–35.5" · Hips 42.5–45"
2XLUS 18 · UK 22Waist 36–38.5" · Hips 45–47"
3XLUS 20 · UK 24Waist 39–41.5" · Hips 47–49.5"
How to measure: waist at the narrowest point, hips around the fullest part of hips and buttocks.

Designed to flatter XS to 3XL, postpartum through menopause. Not sure? Free 90-day exchanges have you covered.
Processing: 1 to 2 business days
US delivery: 5 to 8 business days
International: 10 to 20 business days
Tracking included. You receive a tracking number by email as soon as your order ships.

Returns: 90-day money-back guarantee. Love them or send them back for a full refund, no questions asked. Free size exchanges for 90 days if you picked the wrong size.

For any question about sizing or exchanges: contact@seryova.com
Are they see-through?No. Fully opaque, even under stretch. Smooth, seamless edges mean no visible panty line under your clothes.
How fast will I see a difference?Instantly. The 360° cross-band flattens the tummy and smooths the muffin top the second you put them on.
Will they roll down during the day?No. The wide high-rise band is built to stay put from morning to night, with no rolling and no digging.
What if I'm between sizes?Size down for firmer control, or stay true to size for everyday comfort. Still unsure? Free 90-day exchanges have you covered.
Can I wear them postpartum or through menopause?Yes. The gentle all-around support is designed to stay comfortable postpartum through menopause.
Are they comfortable enough to wear all day?Yes. Buttery-soft, breathable second-skin fabric you can wear from morning to night.
What if they don't work for me?You're covered by our 90-day money-back guarantee. Love them or send them back for a full refund, no questions asked.
Real Women. Real Results.

They tried it once. Now they can't live without it.

20K+ Happy Customers
4.8 Average Rating
90d Money-Back
Anti-roll waistband
Breathable mesh
360° cross-band wrap
Full opacity
Breathable all-day
Postpartum-safe
Straight From Customers

Seen on real women.

Verified
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Shop the Smoothline Brief™ Opaque · Invisible under clothes · 90-day guarantee
Instant flat tummy under any outfit Smooths the muffin top from the very first wear Invisible under clothes, no visible panty line Stays in place all day, no rolling, no adjusting
Smoothline Brief 360° cross-band sculpting
✦ 360° Cross-Band Wrap ✦ Anti-Roll High Waist
Smoothlift™ 360° · Engineered To Hold

Every detail,
engineered to hold.

Most shapewear just squeezes, then rolls down by lunch. The 360° cross-band wrap flattens, smooths, and stays put from morning to night.

360°
Wrap holds all the way around
0
Roll-down, all day
90d
Money-back guarantee

360° Cross-Band Sculpting

Diagonal bands wrap and smooth the tummy, all the way around.

Breathable Mesh

Sheer panels keep you cool and comfortable all day.

Stay-Put High Waist

Wide band that won't roll down or dig in.

Second-Skin Fabric

Soft, opaque, invisible under your clothes.

Shop the Smoothline Brief™ 90-day money-back guarantee. No questions asked.
The moment you wear it
Instant flat line & smooth silhouette
All day
Stays put, stays comfortable
Every outfit
The confidence to wear anything
See What Changed

See what changed. In their words.

Real outfits, smoother lines, more confidence.

Postpartum ★★★★★

The first thing that felt right after my second.

After two babies my middle was soft and nothing sat right under my clothes. I was nervous shapewear would dig in or feel like a corset all day, this doesn't. The high waist smooths everything gently and I genuinely forget it's on by lunch. My tops finally fall clean again.

Her worry: that it would dig in and be uncomfortable.


Maria G. Size L · TX · Verified
Menopause ★★★★★

My waistline looks like mine again.

Menopause changed my middle and I assumed light shapewear wouldn't do much for a real belly. The cross bands actually hold and smooth. Under a fitted dress my waist looks defined again, not squeezed into something. First thing in years that's made fitted clothes feel like an option.

Her worry: that it wouldn't be enough for a menopausal belly.


Sarah T. Size L · MI · Verified
Bloating ★★★★★

Even on a bad-belly day, it's comfortable.

I bloat a lot and most shaping underwear becomes unbearable by afternoon. I almost didn't try this. The mesh panels mean it smooths without that squeezing, pressed-in feeling, so even on my worst days I stay smooth and can actually breathe. That's the part I didn't expect.

Her worry: that it would squeeze and hurt when bloated.


Diane P. Size XL · OH · Verified
Weight-loss journey ★★★★★

Held me through the in-between.

I'm mid-journey and always between sizes, so I figured nothing would fit right. Sized down like the guide said and it gave me a smooth line under jeans from day one, no gaping, no rolling. It's carried me through the stage where my old clothes feel off and new ones aren't here yet.

Her worry: that it wouldn't fit between sizes.


Amanda R. Size M · FL · Verified
Special occasion ★★★★★

Under my bridesmaid dress, invisible.

My one fear was visible lines under a clingy dress at my best friend's wedding. Wore it all night: no VPL, no lumps, just a clean silhouette in the photos. I danced, sat through dinner, and never once tugged at anything. Bought a second the next week.

Her worry: that lines would show under the dress.


Sophie M. Size S · CA · Verified
Everyday ★★★★★

The muffin top over my trousers is just… gone.

Every other high-waist shaper I've owned rolls down by mid-morning. I only kept this on past 10am to test it, and it just stayed. The roll over my work trousers is gone and I stopped thinking about my stomach at my desk. That's the whole reason I reorder.

Her worry: that it would roll down like every other one.


Aisha K. Size M · NY · Verified
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Our Promise

Love Them
Or Get Refunded

90-Day Guarantee. Zero Risk.

Wear them for 90 days. At work, at home, out and about. If your tummy isn't visibly smoother, if you don't feel more confident, and if you're not reaching for them every morning out of habit, full refund. No questions. No hassle.

We designed this brief to become the pair you can't live without. If that's not the case, it's our problem, not yours.

Your confidence in your own body is the only result that matters.

100% Refunded
90 Days To Try
Free Size Exchanges
Your questions, answered

Everything you're wondering about.

The questions women ask us most before their first pair.

90-Day Guarantee
SmoothLift™ Technology
Loved by women everywhere
Instantly. The moment you pull them on, the SmoothLift™ panel flattens the tummy line and your clothes fall straight instead of catching. There is no break-in period and nothing to adjust.
Two things women always mention. The 360° cross-band wrap distributes hold all the way around instead of pressing on one spot, and the anti-roll waistband stays exactly where you put it. Together they smooth without the pinch line most shapewear leaves behind.
No, that is exactly what we engineered against. The high waist sits above the navel on a wide grip band, so it holds through sitting, bending, driving and a full day of wear. No hitching it back up in the bathroom.
It disappears. Smooth laser-finished edges, no seam ridges, no visible outline under a dress, under jeans or under anything fitted. What people notice is the silhouette, not the garment.
Fully opaque, in a breathable second-skin knit that moves air instead of trapping it. It stays comfortable from a morning meeting to the end of a long evening.
Firm where you want a flat line, soft everywhere else. You should feel held, never squeezed or short of breath. If it pinches, you have sized down too far, and exchanges are free for 90 days.
Many of our customers do, and the soft high waist sits comfortably over a postpartum belly. If you had a C-section or any complication, check with your doctor before wearing compression, and start with your usual size rather than sizing down.
Yes. This is one of the most common reasons women write to us. The shaping is built around the midsection, exactly where weight tends to settle, and the breathable knit is a real difference if you run warm.
The four-way stretch adapts across a reasonable range, so a few kilos either way will not throw the fit off. If you move a full size, exchange it free within 90 days and we will send the right one.
Measure your waist and hips and follow the size guide rather than guessing from your jeans size. If you want firmer control you can size down, and if you are between sizes take the larger one for all-day comfort. Size exchanges are free for 90 days.
Then you are covered. Wear it, wash it, live in it for 90 days. If it is not doing what you hoped, write to us and we will refund you. No photos required, no interrogation.

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