Invisible shaping that works quietly in the background. The Butt-Lifting Brief is designed for women who want their clothes to sit more smoothly and their silhouette to look more naturally flattering — without anyone being able to tell why. A U-shaped open-back panel lifts and shapes the seat naturally, while a smooth waistband and seamless construction eliminate visible panty lines under leggings, fitted trousers, and dresses. Breathable microfibre stays comfortable all day. No rolling, no digging, no adjusting. Just a smoother, more confident silhouette from the moment you get dressed.
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 U-shaped open-back panel lifts and enhances the seat naturally — no padding, no inserts, no artificial volume. Just your own shape, better positioned. Dresses, leggings, fitted trousers — everything looks more balanced and more flattering from behind without anything obvious underneath.
do_not_disturb_on
Stay-put waistband
A flat, bonded waistband holds its position all day — no rolling, no folding when seated, no digging into the waist. Comfortable whether you are sitting at a desk, walking, or moving through a full day out. The waistband you put on in the morning is exactly where it is twelve hours later.
visibility_off
Zero visible panty lines
Fully seamless construction with flat-bonded edges disappears completely under any fabric — leggings, silk, fine jersey, and tailored trousers. No ridge, no outline, no awareness. The underwear that makes your outfit look better simply by not being detectable at all.
air
Breathable all-day comfort
Lightweight, moisture-wicking microfibre stays cool and comfortable through full daily wear — no heat build-up, no uncomfortable fabric after hours. Soft enough to forget it is there, structured enough to do its job silently from morning to evening.
Step in and pull up— guide the brief up and position the U-shaped back panel centred across your seat. Let the waistband settle at your natural waist with the front lying smooth across your lower abdomen.
2
Hold On button for 10s
Smooth from centre outward— run your hands from the front panel to the sides and check that the waistband lies flat with no folding or curling anywhere along its edge.
3
get dressed
Get dressed and forget about it— pull on your dress, leggings, or trousers. Check the mirror. Nothing showing. Silhouette looking its best. Move through your day with complete confidence. No adjusting required.
The lift is genuinely natural and the lines are completely gone. I wore these under leggings to the gym and then to lunch and felt confident the entire time. Nobody knew — which is exactly the point.
Wore it all day without noticing
Full work day, dinner out, still comfortable by 10pm. No rolling, no warmth, nothing to adjust. It just worked quietly all day. I've replaced every other pair of underwear I own with these.
Natural lift — genuinely surprised
I didn't think underwear could actually lift without padding. The U-shape does something real. My fitted dress looked more balanced and my confidence going out was completely different. Remarkable.
Zero lines under silk trousers
I wear silk-blend trousers to the office and have never found underwear that disappears under them. These do. Completely smooth, completely invisible. A genuine breakthrough for my work wardrobe.
Subtle shaping that actually works
I have been looking for underwear that shapes without feeling like shapewear for years. Everything I tried was either too tight, too hot, too visible, or lost its shape after a few washes. These do none of those things. The lift is there. The lines are gone
Clinically Studied
Dont take it from us
0%
reported zero visible panty lines under leggings, dresses, and fitted trousers
0%
noticed a naturally lifted and more balanced rear silhouette from first wear
0%
confirmed no rolling, shifting, or waistband folding throughout all-day wear
0%
felt more confident in fitted clothing without any discomfort during extended wear
Find answers to common questions about our products
Completely natural. The U-shaped panel works by cradling and lifting your own shape from below — there is no padding, no inserts, and no added volume. The lift is your shape, better positioned. It looks like you, only more balanced — which is why customers describe it as something nobody can explain but everyone notices.
Yes. The bonded waistband holds its position regardless of posture — sitting, walking, or standing for extended periods. There is no elastic channel to fold or roll, which is the structural reason most underwear waistbands shift. Customers consistently wear these through twelve-hour days without any adjustment.
No. The construction is fully seamless with flat-bonded edges throughout — no raised seam lines, no elasticated ridges, no fabric joins that create an outline. It lies completely flush against the skin under any fabric, including high-stretch leggings and fine silk blends.
No. The brief uses soft, four-way stretch microfibre throughout — there is no firm shaping panel pressing against the body, only the gentle structural lift of the U-shaped back design. The fit is smooth and held rather than compressed. Most customers describe it as feeling indistinguishable from regular underwear while delivering a visibly better result.
