FitSlim 3D Shaping T-Shirt
FitSlim 3D Shaping T-Shirt
+10,000 satisfied customers
Naturally accelerates weight loss
Visibly reduces dimples and smooths the skin on the bust, arms, and back
Activates body heat for increased calorie burning, even at rest
Instantly supports the tummy, waist and lower back, invisible under clothing
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Knit Zones Technology
Satisfied Customers
Free exchange
30-Day Risk-Free Trial
30-Day Risk-Free Trial
Try the 3D FitSlim t-shirts with complete peace of mind. If you’re not fully satisfied, you have 30 days to return them and receive a full refund. Zero stress, just the confidence of a worry-free purchase.
Materials & Care Instructions
Materials & Care Instructions
- Composition: 90% polyamide, 10% elastane
- Washing: machine wash at a maximum temperature of 40°C
- Care: do not bleach, do not iron, do not dry clean
Second Skin Sensation
Doesn't Roll. Doesn't Slip
100% Opaque. Total Confidence
I move with FitSlim!
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Opaque and sturdy fabric
I was worried about transparency, but the leggings stay opaque even during intense workouts. Top-notch quality.
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Visible results fast
After two weeks, I can already see my figure looking firmer. FitSlim exceeds my expectations; I recommend it.
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Effortless slimming
I wear it every day and I really feel the difference. A slimmer figure without changing my habits.
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Impeccable quality
The stitching, the fabric—everything screams quality. FitSlim is nothing like my past disappointments.
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Perfect comfort and support
I wore it all day at work—it’s figure-shaping but very comfortable. You forget you’re wearing it!
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Fast delivery guaranteed
Order received in 3 days with clear tracking. FitSlim delivers on its promises, nothing like my past experiences.
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Impeccable customer service
A minor sizing question resolved within a few hours by customer service. I’ve never had such a quick response anywhere else.
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Easy and fast returns
I exchanged it for a larger size. Simple process, quick refund. Very professional.
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Confidence restored
I was afraid of making an unnecessary purchase, but FitSlim restored my confidence. I love the fit and the look.
Seen on
Sculpting 3D technology
Your body enhanced, naturally and effortlessly.
Why do women choose FitSlim™?
Covers above the navel for full support
Thanks to its high-waisted cut, the FitSlim leggings sit well above the navel to provide optimal support, smooth the tummy, and flatter your figure.
Targeted compression, all-day comfort
Designed from a breathable, stretchy fabric, these leggings provide compression where you need it while remaining comfortable from morning to night.
Instant smoothing, slimmer silhouette
Its 3D compression technology hugs your curves and visibly smooths bulges for an immediate shaping effect, with no extra effort.
Because your figure deserves innovation.
| Sentinelle Pro | Others | |
|---|---|---|
| Visibly reduces the appearance of dimples. | ||
| Promotes energy expenditure throughout the day. | ||
| Helps firm and tone the body. | ||
| Instant shaping effect that redefines curves. | ||
| Provides comfort and boosts self-confidence. | ||
| 30-day money-back guarantee |
Frequently Asked Questions
Are the results immediate?
Are the results immediate?
The slimming effect is instant (slimmer waist, enhanced curves). As for the visible effects on the skin and figure, the majority of our customers notice an improvement after a few weeks of regular use.
Are the leggings completely opaque?
Are the leggings completely opaque?
Absolutely. FitSlim was designed to remain completely opaque, even during intense stretching or workouts. No risk of transparency.
Does the FitSlim legging really help me burn more calories?
Does the FitSlim legging really help me burn more calories?
Thanks to its active compression and innovative 3D fabric, FitSlim engages your muscles more with every step. The result: you naturally burn more energy, even without changing your habits.
Does FitSlim reduce the appearance of cellulite?
Does FitSlim reduce the appearance of cellulite?
Yes. The 3D knit stimulates blood circulation in the targeted areas, which helps reduce the appearance of cellulite. At the same time, the shaping effect firms and tones the silhouette.
How to choose the right size?
How to choose the right size?
A detailed size guide is available on the product page. In the event of an error, we offer a quick and easy exchange at no additional cost.
Is it comfortable to wear all day?
Is it comfortable to wear all day?
Yes. The breathable, stretchy fabric provides comfortable support without excessive compression. FitSlim is designed to be worn for several hours, both at work and at home.
Can I machine wash the leggings?
Can I machine wash the leggings?
Of course. FitSlim is machine washable at 30–40°C. We recommend avoiding bleach, tumble drying, and ironing to preserve the fabric's elasticity.
What should I do if I am not satisfied?
What should I do if I am not satisfied?
We offer a 30-day return policy, which means you have 30 days after receiving your item to request a return.
Simply contact our support team at contact@wearfitslim.com. We process return, refund, or exchange requests promptly. Our goal: a stress-free and 100% worry-free experience.
FitSlim arrives in Paris – Come experience it for yourself!
FitSlim is opening its very first pop-up store in Paris!
A unique opportunity to see our 3D leggings in person, try them on on-site, and get personalized advice from our team.