The Flat Belly Guide
The Avashaping brief™.
Shapewear that works with your body.
6 coloursSizes XS–5XL
- Smoother under fitted clothesCrossed bands smooth your waist the second you pull it on.
- No more rolling downThe high waist stays put, sitting or standing.
- Comfy enough to forgetSoft, breathable fabric from morning to night.
- Made for every bodySizes XS to 5XL, in 6 colours.
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Free UK delivery · 90-day happiness guarantee
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Find your size
Go by your waist measurement, not your usual dress size. Measure around the narrowest part of your waist, keeping the tape level.
| Size | UK dress size | Waist (cm) | Waist (in) |
|---|---|---|---|
| XS | 4-6 | 64-69 | 25-27 |
| S | 8-10 | 71-74 | 28-29 |
| M | 12-14 | 76-81 | 30-32 |
| L | 16-18 | 86-94 | 34-37 |
| XL | 20-22 | 99-104 | 39-41 |
| 2XL | 24-26 | 107-112 | 42-44 |
| 3XL | 28-30 | 114-118 | 45-46 |
| 4XL | 32-34 | 119-122 | 47-48 |
| 5XL | 36-38 | 124-127 | 49-50 |
Between two sizes? Size up for the comfiest fit.
Real reviews
Women who found their aura
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Made for every chapter
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Tap the moment you're in and see how The Ava fits your life right now.
Comfort first, when you feel ready
Those first weeks are about recovery. Once you feel ready and your midwife or GP is happy, The Ava offers soft, gentle support under your everyday clothes.
- Soft, breathable fabric for long days
- Breastfeeding-friendly
- Gentle hold, never tight
Back in your favourite jeans
Life is getting busier and you want your clothes to feel right again. The Ava smooths your tummy under jeans and fitted tops.
- Smoother line under clothes
- Stays put while you carry your baby
- Comfortable from morning to night
Dresses, date nights, you
Your baby is growing and you're ready to wear what you love. The Ava gives a smooth, confident silhouette for every occasion.
- Invisible under dresses
- Smooth from every angle
- 6 colours, sizes XS–5XL
Soft where you need it
Once your scar has fully healed, The Ava smooths your lower tummy with soft, stretchy fabric, comfortable from the school run to bedtime.
- High waist for lower-tummy smoothing
- Soft, flexible fabric
- No rolling down when you sit
It's never too late
Your kids might be at school, or even at university, and the tummy never quite went back. The Ava helps your clothes fall the way you want, whenever you choose.
- Smoother under fitted clothes
- All-day comfort
- 90-day money-back guarantee
For a body that's changing
When your waist changes and nothing fits like before, The Ava smooths and holds without squeezing, so your favourite clothes feel right again.
- Smooths without squeezing
- Breathable for warm days
- Sizes XS–5XL
Just because you want to
No reason needed. The Ava is your go-to for a smoother line under dresses, jeans and fitted tops.
- Invisible under clothes
- Wear-and-forget comfort
- 6 colours to match every outfit
The Ava is shapewear, not a medical garment. After birth or a C-section, check with your midwife or GP before wearing any compression garment.
Why it works
Designed to do three things beautifully
From the very first wear
A flatter-looking tummy, right away
Two crossed bands gently hold your tummy and waist, so you see a smoother shape the moment you pull it on. No squeezing, no pinching.
Invisible under everything
Disappears under your clothes
Seamless, laser-cut edges mean no lines and no tell-tale bulge, under a fitted dress, slim jeans or leggings.
All-day hold
It stays where you put it
A soft silicone grip keeps the waistband in place when you sit, bend or pick up the kids. No rolling, no readjusting.
How it works
Smart bands, exactly where you need them
-
High waistband
Sits above your belly button and stays flat, so nothing rolls over the top.
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Two crossed bands
They wrap your tummy and waist from front to back for a smoother shape.
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Breathable mesh
Light panels between the bands keep you cool all day.
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Seamless edges
No lines under fitted dresses, jeans or leggings.
What to expect
From the first second to every day after
-
Second 1
Pull it on
The crossed bands settle around your waist and your tummy looks smoother straight away.
-
Hour 1
Get dressed
Slip on your fitted dress or jeans. No lines, no ridges, no tugging at your top.
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All day
Forget it's there
Sit, bend, pick up the kids. The waistband stays where you put it.
-
Every day
Your new go-to
Soft enough for every day, so the confident feeling becomes your normal.
Not all shapewear is made the same
Your questions, answered
Which size should I order?
Go by your waist measurement, not your usual dress size, and check the size guide above. Between two sizes? Size up for the comfiest fit. If it's not right, we'll swap it for free.
Will it roll down like other shapewear?
No. The two crossed bands spread the hold all the way around your waist, and the waistband has a soft grip that keeps it in place, even when you sit down.
Will it show under my clothes?
No. The edges are seamless, so there are no lines or ridges under fitted dresses, jeans, leggings or work trousers.
Can I wear it after having a baby or a C-section?
Many mums wear it once they've fully healed. It's soft with no hard boning, but after a birth or any surgery, please check with your midwife or GP before wearing shapewear.
Do I wear it over my knickers?
Either way works. It has a cotton-lined gusset, so most women wear it on its own, just like their usual knickers.
How do I wash it?
Machine wash cold on a gentle cycle in a laundry bag, or hand wash, then air dry. No tumble dryer and no fabric softener, so it keeps its hold.
When will my order arrive?
Orders are dispatched within X working days and usually arrive within X–X working days in the UK. You'll get a tracking link by email.
What if it's not right for me?
You're covered by our 90-day happiness guarantee. Just get in touch and we'll swap your size or refund you.