IONIX LABS

Sculpt Posture Bra — Wireless Front-Closure Lift

Wireless lift. Realigned posture. No underwire.

$39.90 USD

~~$59.90 USD~~ $39.90 USD

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SIZE GUIDE

Sculpt Posture Bra

How to measure Underbust: Measure snugly around your ribcage, just under the bust.
Bust: Measure around the fullest part of your chest, keeping the tape level.

Size	Underbust	Bust	EU Equiv.	US / UK
S	63 – 67 cm25 – 26"	79 – 84 cm31 – 33"	80A – 80B	32A – 32B
M	68 – 72 cm27 – 28"	84 – 89 cm33 – 35"	85A – 85C	34A – 34C
L	73 – 77 cm29 – 30"	89 – 95 cm35 – 37"	90A – 90C	36A – 36C
XL	78 – 82 cm31 – 32"	95 – 101 cm37 – 40"	95B – 95D	38B – 38D
2XL NEW	83 – 87 cm33 – 34"	101 – 107 cm40 – 42"	100B – 100D	40B – 40D
3XL NEW	88 – 93 cm35 – 37"	107 – 113 cm42 – 44"	105C – 105E	42C – 44E

!

Between two sizes? Size UP for all-day comfort. Size DOWN for stronger compression.

Still unsure? Email us your measurements — we'll pick for you.

Find your current bra size below — we'll tell you which Sculpt size fits you best.

S Sculpt Size Small

30B 30C 30D 32A 32B 32C 34A 34B

M Sculpt Size Medium

30DD 30DDD 32D 32DD 32DDD 34C 34D 36A 36B

L Sculpt Size Large

34DD 34DDD 36C 36D 36DD 38A 38B 38C 40B

XL Sculpt Size Extra Large

36DDD 36G 38D 38DD 40C 40D 42B 42C

2XL NEW Sculpt Size 2X-Large

40DD 40DDD 42D 42DD 44B 44C

3XL NEW Sculpt Size 3X-Large

42DDD 42G 44D 44DD 44DDD 46B 46C

!

Between two sizes? Size UP for all-day comfort. Size DOWN for stronger compression.

Still unsure? Email us your measurements — we'll pick for you.

Ships by Sep 21

Shipping to United States

Trending 11 sold in the last hour

Cross-Back Posture

Wireless Comfort

Front-Closure Lift

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

Most bras hold you up. Ours holds you up — and pulls you back. Three mechanisms work together in a single garment, designed to be felt the moment you close the front clasp.

1

Cross-Back RealignmentCrossed shoulder straps gently pull your shoulders back into a natural, upright position — countering the forward slouch from desk work, phones, and long days. Think of it as a quiet reminder, woven into what you already wear every day.

2

Wireless Underbust LiftA reinforced underbust band delivers steady, gentle uplift — without underwire digging in or pinching at the end of the day. Real support that doesn't ask you to suffer for it.

3

Back Smoothing PanelA wide, seamless back panel smooths the bra-line area where most bras create rolls or bulges. Wear it under fitted shirts, dresses or knitwear — the only thing visible is a cleaner silhouette.

Instantly

Lifted bust, aligned shoulders, smoother bra-line

1 week

Less end-of-day shoulder and upper-back tension

30 days

Your default posture starts to shift — you stand taller without thinking

Body fabric: 65% Polyamide / 35% Elastane — breathable, four-way stretch
Insert fabric: 56% Polyamide / 44% Elastane — extra stretch for shaping support
Closure: Adjustable front hook-and-eye — open and close one-handed, no twisting behind your back
Support: Reinforced wireless underbust band — steady lift, no metal, no pinching
Cups: Seamless molded — full coverage, smooth under fitted clothes
Straps: Cross-back design — distributes weight evenly, no shoulder dig
Back panel: Wide, seamless — smooths bra-line bulge under shirts
Inner lining: Soft-touch microfiber against the skin
Sizes: S · M · L · XL · 2XL · 3XL
Designed for: All-day wear — desk, errands, travel, lounging

Care: Wash with like colors. Do not bleach. Do not tumble dry. Hang dry. Do not iron.

Designed with universal stretch — one size covers multiple traditional band-and-cup combinations. Available in S through 3XL. Two easy ways to find your size below.

Between two sizes? Size UP for all-day comfort. Size DOWN for stronger compression and a more sculpted feel.

Option 1 — By Body Measurements (recommended)

S — Underbust 25-26" (63-67 cm) · Bust 31-33" (79-84 cm)
M — Underbust 27-28" (68-72 cm) · Bust 33-35" (84-89 cm)
L — Underbust 29-30" (73-77 cm) · Bust 35-37" (89-95 cm)
XL — Underbust 31-32" (78-82 cm) · Bust 37-40" (95-101 cm)
2XL NEW — Underbust 33-34" (83-87 cm) · Bust 40-42" (101-107 cm)
3XL NEW — Underbust 35-37" (88-93 cm) · Bust 42-44" (107-113 cm)

Option 2 — By Your Current Bra Size

S fits 30B · 30C · 30D · 32A · 32B · 32C · 34A · 34B
M fits 30DD · 30DDD · 32D · 32DD · 32DDD · 34C · 34D · 36A · 36B
L fits 34DD · 34DDD · 36C · 36D · 36DD · 38A · 38B · 38C · 40B
XL fits 36DDD · 36G · 38D · 38DD · 40C · 40D · 42B · 42C
2XL NEW fits 40DD · 40DDD · 42D · 42DD · 44B · 44C
3XL NEW fits 42DDD · 42G · 44D · 44DD · 44DDD · 46B · 46C

How to Measure

Underbust (band): wrap a soft tape directly under your bust, where the band sits. Keep it level and snug, not tight.
Bust: around the fullest part of your chest, with relaxed posture and a non-padded bra on (or no bra).

Still unsure? Email us your measurements — we'll pick for you.

Shipping

Processing: 1-2 business days
USA: 7-14 business days
International: 10-20 business days
Tracking included on every order

Returns

90-day money-back guarantee. Not satisfied? Contact us for a full refund — no questions asked.

Will it really help my posture?

The cross-back design works as a gentle, constant cue — not a brace. You won't feel forced upright, but you will feel the pull-back every time you start to slouch. Most customers report a noticeable shift in how they sit and stand within 2-3 weeks of daily wear.

Is it actually comfortable for full-day wear?

Yes. No underwire, no metal hooks against your skin, and the cross-back distributes weight evenly across your shoulders instead of digging into one strip.

Does it work for larger busts?

Yes — and now more than ever. With the new 2XL and 3XL sizes, the range extends up to a 44DDD / 46C. The wireless underbust band delivers steady lift across all sizes. For very high-impact activities (running, cardio), a dedicated sports bra is still the better choice.

Will it show under my clothes?

The seamless molded cups and wide back panel are designed to disappear under fitted shirts, dresses and knitwear. No band rolls, no strap bumps.

How is the front closure better than back hooks?

You can put it on and take it off without twisting behind you — a real difference if you have shoulder stiffness, recent surgery, or just don't want to fight your bra at 7am.

Wireless lift. Realigned posture. No underwire.

View full details

SEE IT IN ACTION

Engineered for real movement.

Watch the cross-back design pull your shoulders into alignment — without bracing, without metal, without compromise.

01
Cross-back tension The X-design holds your shoulders gently back, all day.
02
Wireless underbust lift Real support — no underwire pinching at the end of the day.
03
Front-close clasp On in 3 seconds. No twisting behind your back.

	IONIX Sculpt™ Posture Bra $39.90	Generic Posture Bras $15–$25	Traditional Underwire $40–$80
Cross-back realignment
Wireless underbust lift		Variable
Front closure (one-handed)
Back-smoothing panel
Size range	S – 3XL	S – XL	32A – 44DDD
Cup range	Up to DDD+ / E	Up to D	Up to DDD+
No-pinch comfort (no metal)
Money-back guarantee	90 days	14–30 days	30 days
Designed for all-day wear		Posture only	Look only