The piece that makes every outfit work. This seamless long-sleeve thong bodysuit is your ten-second outfit foundation — the one layer that tucks, smooths, and holds everything together so she never has to think about it again. A targeted tummy control panel flattens the midsection without squeezing, while the seamless construction disappears completely under blazers, sweaters, and fitted tops. The thong cut eliminates visible lines under any trouser or skirt. Long sleeves stay perfectly tucked and never come loose. Put it on. Pull your outfit over it. Walk out looking finished. That is all it takes.
We want you to love your Selucy fit. If it’s not quite right, you can return your item within 14 days of delivery.
Items must be unworn, unwashed, and in original condition with tags
Returns are handled through our international fulfillment center
Return shipping is arranged by the customer
Refunds are processed within 14 business days after we receive your return
💡 Not sure about sizing? Most customers choose their regular size — and our team is always happy to help if you’re unsure.
To start a return, simply contact us at info@selucy.com — we’ll guide you step by step 🤍
Processing time: Orders are processed within 24 hours
Delivery time:7–14 business days
Shipping method: Products are shipped directly from our supplier to offer the best possible price
Order tracking:
Track & Trace becomes available 2–3 days after shipment
Please note:Delivery times may occasionally be affected by factors such as customs inspections, carrier delays, or peak seasons. We always do our best to deliver your order as quickly as possible.
A reinforced control panel smooths the midsection and creates a clean waistline under any outfit — no squeezing, no restriction. Just a flat, held silhouette that stays consistent whether you're sitting at a desk or standing at dinner.
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Always-tucked long sleeves
Long sleeves that stay put all day — no riding up, no coming untucked, no bunching under a blazer. Blazers and sweaters fall cleanly over the top because there is nothing underneath to shift or bunch out of place.
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One seamless layer
Fully seamless construction with zero visible lines or ridges under clothing. It replaces every awkward underlayer combination — no tucked-in top, no separate shaper, no bulk. One piece does everything, invisibly.
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No-line thong cut
A thong silhouette eliminates every visible panty line under fitted trousers, pencil skirts, and tailored pieces. Clean lines from every angle — front, back, and side — because a polished look only works when it's complete.
Pull it on like a top— step in through the bottom or pull it over your head. Guide the tummy panel so it sits flat across your midsection and the long sleeves reach your wrists without bunching.
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Button Up
Smooth and fasten— run your hands down the sides and front to ensure everything is lying flush. Snap the gusset closed firmly at the base so the bodysuit is fully anchored.
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Button Up
Get dressed in the first thing you reach for— pull on your trousers, step into your skirt, throw on your blazer. Everything falls cleanly. You are done. Walk out the door.
The last base layer they'll ever need to think about.
My blazer finally sits right
I've been trying to find something that works under structured jackets for years. Nothing bunches, nothing shows, nothing comes untucked. This is exactly it.
Invisible under everything
Wore it under a silk blouse and fitted trousers to a client lunch. Completely smooth. Not one line. I got three compliments on the outfit — not the bodysuit, which is exactly the point.
I stopped dreading getting dressed
I used to spend 20 minutes every morning trying to make outfits work. Now I put this on first and the rest takes two minutes. The difference is unreal.
Comfortable for a 10-hour day
I was convinced it would feel tight by noon. It didn't. I wore it from 7am through an evening dinner and honestly forgot I was wearing it. No squeezing, no heat.
You don't need new clothes — you need this
I was about to buy a completely new work wardrobe because nothing felt right on me anymore. A friend suggested this instead. My existing clothes look better now than they did two years ago. I've recommended it to everyone I know.
Clinically Studied
Dont take it from us
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reported a visibly smoother midsection under fitted clothing
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said zero visible lines under trousers or skirts all day
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felt no tightness or discomfort after extended all-day wear
0%
said it made getting dressed faster and less stressful
Find answers to common questions about our products
No. The seamless four-way stretch fabric is designed to hold — not constrict. The tummy panel provides targeted smoothing at the midsection only, so the rest of the bodysuit moves freely with your body. Customers regularly wear it through ten-hour days without any tightness or discomfort.
Yes. The thong is cut from the same soft, seamless microfibre as the rest of the bodysuit — no harsh elastics, no digging. It is designed to sit completely flat and unnoticed throughout the day, which is why it works so well under tailored trousers and fitted skirts where no other cut would be invisible.
No. The sleeves are cut slim and constructed from a low-friction fabric that slides cleanly under outerwear without gathering or rolling. They stay anchored at the wrist and flat along the arm — so your blazer sits exactly as it should, every time.
It is not. Traditional shapewear compresses your whole body with rigid panels and tight elastic. This bodysuit uses a single targeted control panel at the midsection while the rest of the fabric is soft, breathable, and unrestricted. The goal is to smooth and hold — not squeeze. If you can breathe normally and forget you are wearing it, it is working exactly as designed.