AirSlim Back Smoothing Underwire Push-Up Bra

AirSlim Back Smoothing Underwire Push-Up Bra

 4.7/5 from over 13,384+ satisfied customers
£39.00
£39.00
SAVE Sold out

Adaptive compression shapes your waist, smooths your tummy and back, and supports your curves—without the stiff, restrictive feeling of traditional shapewear.

Targeted Tummy & Waist Shaping
Sweat-Managing Breathable Fabric
Lifts & Supports Your Curves
Helps Reduce Rolling & Slipping
Smoother Under Clothing
Designed For All-Day Wear
Try Formyne Risk-Free
Secure Checkout · Easy Returns
FORMYNE FIT GUIDE

Bra Size Guide

Find your FORMYNE fit.

Measure around your ribcage directly beneath your bust for your underbust measurement. Then measure around the fullest part of your bust for your bust measurement. Keep the tape comfortably close without pulling it tight.

✦
FORMYNE Fit Tip

If you fall between measurements, choose the size that gives you secure support without digging or restricting your breathing.

Band Underbust
(cm)		 B C D DD DDD G H
34 73.7–76.2 86.4–88.9 88.9–91.4 91.4–94.0 94.0–96.5 96.5–99.1 99.1–101.6 101.6–104.1
36 78.7–81.3 91.4–94.0 94.0–96.5 96.5–99.1 99.1–101.6 101.6–104.1 104.1–106.7 106.7–109.2
38 83.8–86.4 96.5–99.1 99.1–101.6 101.6–104.1 104.1–106.7 106.7–109.2 109.2–111.8 111.8–114.3
40 88.9–91.4 101.6–104.1 104.1–106.7 106.7–109.2 109.2–111.8 111.8–114.3 114.3–116.8 116.8–119.4
42 94.0–96.5 106.7–109.2 109.2–111.8 111.8–114.3 114.3–116.8 116.8–119.4 119.4–121.9 121.9–124.5
44 99.1–101.6 111.8–114.3 114.3–116.8 116.8–119.4 119.4–121.9 121.9–124.5 124.5–127.0 127.0–129.5
46 104.1–106.7 116.8–119.4 119.4–121.9 121.9–124.5 124.5–127.0 127.0–129.5 129.5–132.1 132.1–134.6
48 109.2–111.8 121.9–124.5 124.5–127.0 127.0–129.5 129.5–132.1 132.1–134.6 134.6–137.2 137.2–139.7
50 114.3–116.8 127.0–129.5 129.5–132.1 132.1–134.6 134.6–137.2 137.2–139.7 139.7–142.2 142.2–144.8
Cup columns show your full bust measurement in centimetres.
Example: If your underbust is approximately 84–86 cm and your full bust is approximately 104–107 cm, your recommended starting size is 38DD.
365-Day Fit & Return Guarantee Shop with confidence. If the fit isn’t right for you, you have up to 365 days to return your FORMYNE order, subject to our returns policy. View Returns Policy
FREE UK DELIVERY OVER £60 · EASY 365-DAY RETURNS
365-Day Risk-Free Returns Wear FORMYNE with confidence. If it isn’t right for you, you have up to 365 days to return it.
Fast Tracked Delivery Free UK delivery on orders over £60, with tracked shipping available.
Shaping Without the Struggle Smooth, sculpt and support your curves in seconds—with compression designed to move with you.
What makes FORMYNE different?
FORMYNE uses adaptive compression: firm support through the core, flexible zones where your body moves and softer edges for a smoother finish.
How firm is the compression?
FORMYNE provides firm, targeted compression through the abdominal area, with more flexibility around high-movement areas.
Will it roll down?
Distributed grip helps keep the garment securely in place without relying on one narrow, restrictive waistband.
Will it show under clothing?
The low-pressure leg openings are designed to sit flatter and minimise cutting-in and visible lines. Results may vary depending on your body shape and clothing.
Is it comfortable for all-day wear?
FORMYNE is designed with breathable stretch, ventilation and flexible movement for longer wear.

Always listen to your body and remove the garment if it becomes uncomfortable.
How do I choose my size?
Use your current measurements and follow the size guide on the product page. If you are between sizes, follow the guidance provided in the size chart.
Should I size down for more compression?
No. Choose your usual size based on your measurements. The correct size should feel firm and supportive without causing pain, numbness or difficulty breathing.
How should shapewear feel?
It should feel firm and secure while still allowing you to sit, walk, stretch and breathe comfortably. It should never feel painful or excessively restrictive.
How do I put it on?
Step into the garment and gradually pull it up, adjusting the fabric evenly. Avoid pulling only from the waistband or gripping the fabric with sharp nails.
What can I wear it under?
FORMYNE creates a smooth, supported foundation beneath dresses, trousers, skirts and everyday outfits.
How should I wash it?
Always follow the instructions on the care label. Gentle washing and air-drying will help preserve the garment’s stretch, compression and shape.
Can I return my order?
Yes. FORMYNE offers easy 365-day returns. Please review our returns policy for eligibility, hygiene requirements and full terms.
Do you offer free UK delivery?
Yes. UK delivery is free on orders over £60. Tracking information will be provided when your order is dispatched.
AirSlim Back Smoothing Underwire Push-Up Bra

AirSlim Back Smoothing Underwire Push-Up Bra

£39.00
£39.00
SAVE Sold out
View full details
Woman wearing FORMYNE shapewear comfortably throughout her day

Made for real life

Wear the outfit.
Forget the shapewear.

The best shapewear is the kind you stop thinking about once you put it on.

No spending dinner wondering when you can take it off.
No constant pulling it back into place.
No choosing between a smoother silhouette and being able to sit comfortably.

FORMYNE is designed to give you the support you want while letting you get on with your day.

At work. At dinner. At weddings. On nights out.

Under the dress you almost didn’t wear.

Breathable comfort

Shaping shouldn't mean overheating.

High compression can trap heat exactly where you don't want it.

FORMYNE uses breathable, moisture-wicking fabric and ventilation zones to help move moisture away from the skin and keep the garment feeling more comfortable as the day goes on.

Moisture-Wicking Helps move moisture away from the skin during wear.
Breathable Ventilation Ventilation zones support airflow where you need it most.
Comfort That Lasts Designed to feel fresher and more comfortable as the day goes on.

Less clammy. Less distracted. More comfortable in your clothes.

REAL FORMYNE EXPERIENCES

The kind of shapewear
you actually want to wear.

Smoother outfits. Comfortable support. More confidence in what you wear.

FORMYNE customer review
★★★★★
Verified buyer

Gives you that subtle hourglass shape naturally

“What I love most is how natural the transformation looks. It doesn't look like you're wearing heavy padding... it just looks like you have a perkier, rounder shape and a smooth stomach. The flexible side bones keep the waistband straight, so you get a smooth transition from your waist down to your hips.”

– Verified Buyer
FORMYNE customer review
★★★★★
Verified buyer

Okay, the butt lift surprised me

“I wasn't expecting much, but wow lol. The back looks noticeably rounder in my jeans, and it still looks pretty natural.”

– Verified Buyer
FORMYNE customer review
★★★★★
Verified buyer

Got a compliment first time wearing

“First day I wore these, my friend said ‘your butt looks great.’ She didn't know I had shorts on. That's how natural the lift is. Super happy with this purchase!”

– Verified Buyer
FORMYNE customer review
★★★★★
Verified buyer

Comfortable underwire - yes it exists!

“I usually avoid underwire because it pokes, but the one-piece design fits my shape perfectly. No poking at all. The adjustable straps are sturdy and easy to customize.”

– Verified Buyer
★★★★★
Loved by FORMYNE customers Real experiences from women wearing FORMYNE in real life.

FREQUENTLY ASKED QUESTIONS

Questions? We’ve got answers.

Everything you need to know about FORMYNE adaptive compression shapewear.
What makes FORMYNE different?
FORMYNE uses adaptive compression: firm support through the core, flexible zones where your body moves and softer edges for a smoother finish.
How firm is the compression?
FORMYNE provides firm, targeted compression through the abdominal area, with more flexibility around high-movement areas.
Will it roll down?
Distributed grip helps the garment remain securely in place without relying on one narrow, restrictive waistband.
Will it show under clothing?
The low-pressure leg openings are designed to sit flatter and help minimise cutting-in and visible lines.

Results may vary depending on your body shape and the fabric worn over it.
Is it comfortable for all-day wear?
FORMYNE combines breathable stretch, ventilation and flexible movement for comfortable longer wear.

Always listen to your body and remove the garment if it becomes uncomfortable.
How do I choose my size?
Use your current measurements and follow the size guide on the product page. The correct size should feel firm and supportive without causing pain, numbness or difficulty breathing.
Should I size down for more compression?
No. Choose the size recommended by our size guide. Sizing down may affect comfort, movement and the garment’s intended performance.
How should shapewear feel?
It should feel firm and secure while still allowing you to sit, walk, stretch and breathe comfortably. It should never feel painful or excessively restrictive.
How do I put it on?
Step into the garment and gradually pull it up, adjusting the fabric evenly as you go. Avoid pulling only from the waistband or gripping the fabric with sharp nails.
What can I wear it under?
FORMYNE creates a smooth, supported foundation beneath dresses, trousers, skirts and everyday outfits.
How should I wash it?
Always follow the instructions on the care label. Gentle washing and air-drying will help preserve the garment’s stretch, compression and shape.
Can I return my order?
Yes. FORMYNE offers easy 365-day returns. Please review our returns policy for eligibility, hygiene requirements and full terms.
Do you offer free UK delivery?
Yes. UK delivery is free on orders over £60. Tracking information will be provided when your order is dispatched.