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Woman wearing the Leonie & Co 3D Sculpting Arm Sleeves in black, knitted 3D relief lines visible on the upper arm
3D Sculpting Arm Sleeves | Black

Self-care Month

Save up to 70%

Arm Shaping & Compression

3D Sculpting Arm Sleeves | Black

N°1Award-Winning 2026 Innovation· Arm Shaping

200,000+ happy women

Smoother-looking arms

Held, not squeezed

Invisible under a sleeve

One size, no chart

Color
Last Items in Black & Beige Size guide
SizeUpper armLower armLength
One size fits all3.593.187.318.5

The figures above are the sleeve measured flat and unstretched. The knit stretches over the widest part of your arm and pulls back to shape.

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Fabric & fit

Knitted with 3D relief lines running the length of the arm, not printed on. A ribbed band at each end keeps them exactly where you put them.

Even hold

From just above the elbow to the shoulder, and never a pinch point.

Bands that stay

Ribbed top and bottom, so they hold their place and do not roll down.

Seamless knit

Thin, matte and breathable. Nothing shows through a sleeve.

90% polyamide, 10% elastane. Four-way stretch, one size, sold as a pair. There is no size to pick.
How to wear it

Position the top just below your shoulder seam and the bottom just above the elbow, so it does not fight the bend of your arm.

All day

Even pressure along the arm, so you can keep them on from morning to night.

Under anything

One smooth line under close-fitting sleeves, at work or out.

Easy care

Machine wash at 30 degrees. Reshape and air dry flat to keep the stretch.
Shipping & returns

Ships in 48h

Your order is confirmed by email as soon as it leaves.

5 to 7 days

Free shipping, carried by UPS and tracked the whole way.

Free returns

Thirty days to exchange or refund, no questions asked.

Any question gets an answer within 24 hours at contact@leonieandco.com.
As Seen In
200,000+

women wearing their sculpting sleeves all day, from a work blouse to a summer dress

3D Knit Relief

Knitted into the fabric along the full arm, never printed.

Stays In Place

Ribbed bands at both ends keep them from rolling.

Smoother On Sight

Your arms look smoother the moment you pull them on.

Invisible Knit

Matte and seamless under any sleeve.
Order your pair today

Try them risk-free for 90 days

EXCELLENT · Rated 4.9/5

Reviews from women like you

Nicole B.

Verified

One size · 46 · Austin, TX

3 months

“I used to throw a cardigan over everything. Under a blouse you cannot see them, and my arms look smoother.”
Hundreds spent on creams
Smoother skin in 7 weeks

Natalia A.

Verified

One size · 37 · San Antonio, TX

5 months

“There is no seam anywhere, so nothing shows under a fitted top. And my arms look smoother in photos.”

days to see it12

weeks worn9

a day3h

Rachel P.

Verified

One size · 51 · Portland, OR

2 months

“I lost weight and my upper arms stayed soft. With these on, the shape under my sleeve looks smoother right away.”

Smoother arms from day one

Day 1

Week 2

Week 6

Priya M.

Verified

One size · 50 · San Jose, CA

“I teach all day and they stay comfortable from the first class to the last. Nothing pinches at the top of my arm.”

Her own comfort rating

BEFORE2/10

NOW9/10

Carolina N.

Verified

One size · 48 · Seattle, WA

2 months

“I keep my arms up all day at work and they have never slipped down. Two months in, they still hold the same.”

Stays put through her day

Day 1

Week 3

Week 6

Danielle P.

Verified

One size · 48 · Miami, FL

6 weeks

“In Miami heat I still hid my arms. These are light enough to keep on all day and look smoother under a tank.”
Avoided every mirror
Mirror-ready in 5 weeks

Laura D.

Verified

One size · 43 · Denver, CO

4 months

“I put them on with breakfast and go. The ribbed ends hold all day without digging into my arm.”

days to see it18

weeks worn9

a day2h

Denise R.

Verified

One size · 62 · Chicago, IL

“At 62 I had stopped wearing short sleeves. Now I go to lunch in them and I am not tugging at my arms all day.”

Her own mirror rating

BEFORE3/10

NOW8/10

Wear all day

No routine

How our 3D sleeves smooth the look of your arms

The effect shows the moment you put them on
ResultsWhen will I actually notice something?

The first look happens in the mirror, the day they arrive. This is the pace our customers report, and where the guarantee lands:

Arms held, instant lift

Sleeveless again

Smoother look, cleaner line

The cardigan stays home

Or your money back
How It WorksWhy would a sleeve change how my arms look?

The raised 3D knit runs from above the elbow to the shoulder and holds the skin flat instead of letting it move. A ribbed band at each end keeps the sleeve in place. The effect comes from wearing them, nothing to organize around it.

Nothing to book No appointment, no clinic, no waiting room.

Nothing to add to your day You put them on in the morning. That is it.

Nothing to lose 90 days to judge them on your own arms.
Daily WearHow long do I wear them each day?

As long as you like. Most customers put them on in the morning and forget them until evening, under a blouse or on their own. There is no schedule to follow.

2h wearing them22h of your normal day
Fit & HoldWill it do anything for my kind of arms?

Upper arms soften for different reasons: weight changes, less muscle under the skin, age. The knit works on the surface, so what changes is the line under your clothes, not the skin itself. Here is how the usual options compare on what actually matters:

The honest part: on very loose skin after major weight loss, the sleeves smooth the line, they do not tighten it. That is why you get 90 days rather than a promise.
Leonie & Co A cardigan Shapewear sleeves A long-sleeve top Smooths the upper armNothing to fasten or adjustNo extra time in your dayKnitted-in relief linesInstant shaping effectOne-off costMoney back if it does nothing
Life ChangesMenopause, weight loss, softer arms: still relevant?

The compression is gentle rather than medical, which is why it suits skin that has softened with age or weight changes, and why any arm swelling deserves a professional opinion first.

After pregnancyYes

Around menopauseYes

Weight changesYes

During pregnancyAsk your midwife
CareHow do I wash them without flattening the knit?

Softener coats the fibers and flattens the 3D relief, the part doing the work. Machine wash at 86 F, dry flat, and the relief keeps its shape.
Fabric softener Tumble dryer Ironing the 3D lines
Machine wash at 30°C Turn them inside out Air dry flat or hanging
SizingOne size: how does that fit my arms?

One size, the stretch does the adjusting, from a slim arm to a fuller one. If they do not sit right, returns are free for 30 days.

One size, sold as a pair.

One size, four-way stretch. Nothing to measure and nothing to pick.

Trusted by

and 200,000+ women

They love Leonie, because we made sleeveless days easy again

FitTrue to size

CompressionJust right

Comfort4.8/5

Results speed4.6/5

2,847 women scored it

No incentives

  • 5 stars: 16 (80%)
  • 4 stars: 4 (20%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Catherine W.
Tidier around the underarm

The area that concerned me most looks much neater.

N
Naomi Q.
Easy care

Rinse, hang, done. No special treatment needed.

M
Malika Y.
Consistent all day

The pressure does not fade after a few hours.

E
Ella N.
The smoothing is real, price less so

The quality is there, so I understand it, but it is not cheap.

C
Caroline E.
They solved my problem

I had stopped wearing half my summer wardrobe. It is all back in use.

F
Farah P.
Good weight of fabric

Substantial enough to smooth, thin enough to stay cool.

E
Evelyn D.
Good for long days out

A full day of sightseeing with no adjusting and no discomfort.

C
Cassie T.
They look natural

The edges do not create a line, so nothing looks obviously worn.

J
Josie Y.
Comfortable, shows lint

Dark fabric picks up fluff. A quick brush sorts it out.

Z
Zainab U.
Really happy with these

They do what they claim and they are comfortable.

K
Kelly P.
I will order again

Already planning a spare pair for next summer.

H
Heather A.
I will order again

Already planning a spare pair for next summer.

E
Elizabeth J.
Great with a strappy top

The combination looks intentional rather than like a cover-up.

H
Heidi H.
Great with a strappy top

The combination looks intentional rather than like a cover-up.

B
Brooke Z.
Even pressure along the arm

Not tighter in one spot than another, which I appreciate.

H
Helen O.
Even pressure along the arm

Not tighter in one spot than another, which I appreciate.

W
Wendy N.
Solid, clearer sizing would help

It worked out in the end, but I would have liked more measurement guidance.

H
Holly V.
Solid, clearer sizing would help

It worked out in the end, but I would have liked more measurement guidance.

L
Louise I.
A small change, a big difference

Two sleeves, and my summer wardrobe feels wearable again.

H
Hope C.
A small change, a big difference

Two sleeves, and my summer wardrobe feels wearable again.

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