FitSlim 3D Flow Panties

FitSlim 3D Flow Panties

 4.6/5 | 318 verified reviews

water_drop Zero-Leak Protection — Even When You Move

air Ultra-Breathable Fabric That Keeps You Dry

eco Certified PFAS-Free & Hypoallergenic

dermatology Visibly reduces dimples and firms the skin

visibility_off Invisible under anything

  • Absolutely love this period underwear. It stayed perfectly in place during my workout, no leaks, breathable fabric, and feels like regular underwear. FitSlim changed my confidence.

    Gaby N, Austin

  • Great for busy days and gym sessions. No discomfort, no moisture, and surprisingly lightweight under leggings. I feel secure and free to move anytime. Highly recommend.

    Sarah M, Denver

  • Perfect during my runs and work shifts. No leaks and no odors. Soft fabric, great fit, and totally invisible under clothes. FitSlim made periods easier today.

    Lauren T, Chicago
    Only 5 left!
     
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    30-day risk-free trial

    Try the FitSlim 3D leggings with complete peace of mind. If you are not completely satisfied, you have 30 days to return them for a full refund. No stress, just the certainty of a purchase you can trust.

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    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
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    I'm moving with FitSlim!

    My favorite sculpting leggings 😍 Comfort + style + confidence 💖 Thank you @wearfitslim #FitSlimCommunity

    3D Sculpting Technology

    Your body enhanced, naturally and without constraint.

    dermatology
    Smoother skin

    The innovative 3D mesh stimulates circulation with every movement and reduces the appearance of dimpling—without creams or gimmicks.

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    Increased energy expenditure

    Dynamic compression continuously activates your muscles, increasing calorie consumption without changing your daily routine.

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    Redesigned silhouette & confidence

    Immediate shaping effect: slimmer waist, enhanced curves, improved posture. Visible results, restored confidence.

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    Breathable and durable comfort

    Stretchy, breathable fabric that hugs the body without constricting. Ideal for all-day wear with ease.

    Because your silhouette deserves innovation.

      Others
    Visibly reduces the appearance of cellulite.
    Promotes energy expenditure throughout the day.
    Helps firm and tone the body.
    Immediate shaping effect that redefines curves.
    Brings comfort and boosts self-confidence.
    30 days money back guarantee

    Featured On

    FitSlim arrives in New York – Experience it live!

    In December 2025, Fitslim is opening its very first popup store in NY!

    This is your unique chance to discover our 3D leggings in person, try them on, and enjoy personalized advice from our team.

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      30-day Guarantee

      Satisfied or your money back

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