Only 3 steps to leak-free living!

  • 1. Find your perfect pair!

    Take a look at our collection and choose the knickers that fit your needs. Just go with the flow - blood, sweat or pee we've got you covered.

  • 2. Order now or pay later! With Afterpay

    Order you favourite products and enjoy free shipping when you spend over $99AUD. We'll carefully package and deliver to your door in a flash.

  • 3. Feel comfort & secure!

    Slip them on and feel the difference, soft, secure, and like they were made just for you.
    This is the start of your leak-free, worry-free journey… and trust us, there’s no going back.

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      The Magic Behind the Comfort

      Our No Worry Knickers are powered by clever design and cutting-edge 4 layer leak-proof technology. With multiple absorbent layers that wick away moisture and lock in odours, these knickers keep you dry, fresh, and leak-free – no matter what your day throws at you!

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      Inner Stay Dry Layer

      Absorbs liquid, wicking away in seconds, leaving them dry to the touch.

      Ultra Absorbent Layer

      Absorbs and locks in moisture and odours

      Leak-proof Membrane

      Breathable and non toxic TPU membrane

      Outer Layer

      Dry, breathable, soft, stretchy and look just like regular knickers.

      Why 9 Out 10 ShineSister's Keep Coming Back

      98%

      98% of ShineSisters say they trust our knickers to keep them dry and protected, no matter the day, flow, or situation.

      96%

      96% say they love the feel, the look and the all day comfort, with our soft, breathable fabric and high quality tailoring.

      93%

      93% felt better about not using disposables anymore, dignity restored, planet supported and money saved.

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        Who We Are

        A woman designing for women. A mum creating for mums.

        I know the juggle, the quiet struggles, and the daily wins, because I live them too.

        ShineSister was born from my own search for leak-proof underwear that felt & looked good, worked well, and didn’t cost the earth. As someone who’s experienced urge incontinence and irregular cycles, I wanted better, for me and for every woman who’s ever worried about leaking.

        Because every woman deserves to live confidently, comfortably, and leak-free.

        Welcome to a space that’s made for you, leak-proof underwear made for real life, real women.

        Jess / FOUNDER & CEO

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        Why we're loved by 15,000+ Women

        It's Our Promise to You

        • Superior Support

          Leak-proof living made easy with knickers that don’t just catch leaks—they support your body, move with you, and feel like your favourite pair. Stylish, secure, and seriously comfortable—so you can go about your day with total confidence.

        •  Sustainability

          Reuse or recharge! At ShineSister, we say no to single-use waste and yes to reusables that are better for your body and the planet. Thoughtfully made with eco-conscious, toxic free materials, our undies help you reduce landfill and live lighter, one wear at a time.

        • Outstanding Quality

          Quality fabrics, quality products, quality service, because you  deserve it! From the first stitch to your final wear. We use premium, breathable fabrics and rigorous design standards to create leak-proof knickers that feel luxe, fit beautifully, and perform when it matters most.

        • Absolute Guarantee

          We’re confident you’ll love your ShineSister knickers—but if your first pair isn’t the perfect fit, we’ve got you. Our Perfect Fit Guarantee means you can try risk-free: if it doesn’t fit or feel right, we’ll refund or replace your first pair. No stress, no fuss—just comfort and confidence, guaranteed.