These are the best leak proof pants I have ever owned. The liner comes up high at the back offering confidence especially at night. They are thin and discreet, like ‘normal’ underwear. They aren’t bulky or rustle when you walk. Odour control is also great. The owner is quick to respond to queries and is polite and knowledgeable and a dream to deal with. I recommend these without hesitation with the highest endorsement. You want leak free, get these!
Betty-Hipster
Betty-Hipster
Regular price
$27.95
Regular price
$27.95
Sale price
$34.95
Unit price
per
Heavy Absorbency
Up to 8 Hours of Protection
100% Leak-proof Design
Light Fabric, Breathable on Skin
Reusable, Reliable 100+ Washes
Perfect Fit Guarantee
⏳ LOW STOCK - SELLING FAST
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I was skeptical at first, but these undies have changed my life! So comfortable and absorbent, I don't have to worry if I leak a little anymore. ~ Irene. From Sydney
Description
Description
Betty Hipster offers all-day comfort with a full bum and low-rise fit. The 4-layer leak-proof design keeps you dry and confident, whether you're managing light bladder leaks, period flow, sweat, or discharge.
Crafted from ultra-soft bamboo fibre, these breathable, moisture-wicking knickers lock in odours and prevent leaks. Machine washable for convenience, they’re the perfect everyday choice for reliable, leak-proof protection.
Material
Material
Made with:
Outer: 95% bamboo / 5% spandex
Inner: Bamboo fiber / spandex/ polyester / nylon / breathable TPU
Gusset: 95% bamboo / 5% spandex
Absorbency
Absorbency
Care
Care
BEFORE YOU WEAR
Wash before use to activate the absorbency layers. In a wash bag is always best.
AFTER USE
Rinse in cold water after use, until water runs clear.
Don't leave wet for too long before washing
Do not soak.
COLD WATER WASH
Machine wash in cold water with like colours. In a wash bag is always best.
Avoid fabric softener, bleach or harsh chemicals.
HANG TO DRY
Line dry in the shade. Peg outside the absorbency area.
Do not tumble dry, dry clean or iron.
Sizing
Sizing
Sizes are displayed in Australian/UK sizes, please refer to the size guide for international tag sizing.
Please check the size guide above, if you are still unsure on size or style, please reach out to our customer service team for advice.
*Please note sizes may vary 1-2cm.
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!
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.
Featured In
It Just Makes Sense
We could't possible list all the reasons why our knickers are the better solution, here are three good ones
| ShineSister Knickers | Pads / Tampons | |
|---|---|---|
| Secure Comfort | ||
| Eco-friendly Sustainable | ||
| Buy Once - Love for Years |
How you can make an Impact
Protect Yourself, Protect the Planet
Switching to leak-proof knickers is a simple way to reduce waste and lessen your environmental impact, all while enjoying reliable protection and comfort every day.
Life-Changing Comfort, In Their Words
Loved by 15,000+ Women and Counting
Our Leak-proof Knickers are NOT nappies
Promise: Just like your favourite knickers only smarter. Our ultra-thin, flexible leak-proof gusset is designed to feel discreet and comfy, never bulky, so it moves with you and keeps you dry without you noticing a thing.
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.
It's Our Promise to You
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Reliability
Advanced leak-proof technology that delivers protection day and night. Just pop them on and go!
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Sustainability
Reusable, eco-conscious, and free from harmful chemicals. Better for you, and better for the planet.
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Functionality
Flattering fits, and all-day wearability, because comfort and style shouldn’t stop at support.
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Gurarntee
If your first pair isn’t the perfect fit, we’ll refund or replace it, no fuss, just support you can trust.
FAQ's
How do leak-proof knickers work?
How do leak-proof knickers work?
Our knickers use advanced multi-layer technology to absorb liquid, lock in odours, and keep you feeling dry. The top layer wicks moisture away, while the built-in absorbent core holds leaks securely—without feeling bulky.
What can I use them for?
What can I use them for?
while absorbencies vary, they're perfect for periods, light bladder leaks, discharge, postpartum recovery, and even sweat. Whether you're sleeping, exercising, or on the go—they’ve got you covered.
How much can they hold?
How much can they hold?
Our knickers can absorb up to 2–4 tampons’ worth, depending on the style. Check each product description for exact absorbency levels to find your perfect match.
When do I need to change them?
When do I need to change them?
It depends on your flow or level of leaks. Most ShineSisters can be worn for up to 8–10 hours, just like a regular pair of undies. On heavier days or if you’re unsure, it’s a good idea to bring a spare pair—just like you would with pads or tampons. You’ll know it’s time to change when the gusset starts to feel damp.
Do they feel like wearing a pad?
Do they feel like wearing a pad?
Not at all. Our gusset is thin, flexible and breathable—designed to feel just like your favourite pair of knickers. Soft, comfy, and completely discreet.
How do I wash and care for them?
How do I wash and care for them?
It’s simple: rinse in cold water, then machine wash in a bag on gentle cycle with mild detergent. Line dry—no fabric softeners or dryers, please. With proper care, they’ll last for years.
Are they safe and non-toxic?
Are they safe and non-toxic?
Yes. ShineSister knickers are free from PFAS, toxic coatings, and harmful chemicals. We only use safe, tested fabrics that are gentle on sensitive skin and kind to the planet.
Do I need to wear a pad or liner?
Do I need to wear a pad or liner?
Nope! Our knickers are designed to be a complete replacement for disposables during light to moderate leaks. If you have a very heavy flow, you may prefer to pair them with a cup or tampon.
How long do they last?
How long do they last?
With the right care, your No Worry Knickers can last 2–3+ years or 100+ washes—making them a sustainable and cost-effective alternative to disposable products.
Customer Reviews
Overall rating: 4.8 / 5 from 136 reviews.
These undies are a life saver. I’ve been struggling with a little incontinence since having my baby girl. I felt so embarrassed having to wear a pad all the time, now I don’t have to worry about pads, these undies have given me back my dignity. Not bulky at all but really absorbent, comfy and look good on too!
I’ve tried various period underwear brands, but none compare to these. They’re not only super absorbent and leakproof, but they’re also unbelievably comfy. And the fact that they’re better for the environment makes me feel good about my purchase.
So glad I found these knickers. I’ve never liked using tampons, and pads are so bulky, expensive and terrible for the environment. These knickers are comfy, really absorbent, easy to wash and so much better for the planet.
I've been using these undies for mild incontinence for a while now, and never had an issue with leaks, I don't feel wet, and there's never any smell. I'm a very happy customer, hence the 5 star review.
Love the No Worry Knickers. I've tried a few different brands and these's ones are awesome, they're everything a good period undie should be. I have more on the way :)
Best protection knickers around. Unlucky for me I deal with daily incontinence and my monthly cycle, moving to reusable knickers was a must & I’m so glad I found these ones. Now I can go about my day and never have to worry about a wet patch
Love the feel of them so soft and very comfortable definitely would be recommending these
Finally found panties that work for both my period and occasional leaks. Great absorbency and very comfortable.
These are wonderful, very comfy and I can use them for my period or even just to ensure when sneezing I feel protected post children.
Best fit. Very comfortable.
Received wrong sizing ordered small received medium.
Received wrong size, ordered small and received medium. Wasn't able to return items due to financial circumstances and time.
They are great!
I contacted Jess and she kindly sent me 3 new pairs in the size and style I like. It’s a shame they don’t look like the real thing online, however I am more than happy with my recent replacement order. Many thanks to Jess.
I purchased 2 pairs and both leaked through my pad through the undies and through my clothes first time wearing them. Very expensive normal underwear, very comfortable though.
I had a bit of trouble with sizing as I am between sizes. Jess was very helpful and her customer service was amazing. She went above and beyond to make sure I had the right fit and that I was happy. Delivery was super fast too.
Great product
Sizing ran a little large but that was taken care of with a phone call... quickly replaced with the correct size. Very comfortable to wear, easy to launder
Excellent
Like this fabric better & the sizing is more realistic
I find these undies are more comfortable to wear than others I've tried, being a bit lighter weight and with elastic not as tight. I did have some strange stains appear on one pair but have received a replacement from the company which I appreciate and am happy with the quick response.
Very comfortable. Great customer service.
I bought 7 pairs and went off your sizing chart and bought 2XL. They are way too big for me! Should have bought Large. I can not wear them. Wasted my money.
So comfy, love em..
Excellent customer service and product
Love the colour and the fabric is so soft. Very comfortable to wear and they give you peace of mind when you go out
Very comfortable and stress free
I'm thoroughly impressed with these panties! They fit perfectly, are incredibly comfortable, and I no longer need to deal with soggy underwear or use panty liners. Plus, they're very hygienic. Thanks, Shine Sister, for creating an excellent product that's also budget-friendly.
Protection is quite good.
It is very handy for other things aswell
Comfortable and functional
I love these undies , they help my slight LBL problems.Great for when I’m out .. Service was great , they do take a little longer to dry but it’s not a problem… This is for all 5 pairs that I brought,
Very happy
Great item. Will repurchase
Perfect fit, comfortable and not bulky
Very happy with my purchase, so comfortable
satisfied
satisfied
Great fabric, true to size, comfortable and did the job with no leaks