I actually ordered a black pair as well but they are so much smaller than the other ones so I can’t wear them, but I love the other two, not sure what we can do about that, cheers Maree Glynn
Comfy Jane-High Waist Full Brief
Comfy Jane-High Waist Full Brief
Regular price
$29.95
Regular price
$29.95
Sale price
$39.95
Unit price
per
Light 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
Ultra-soft and stretchy, Comfy Jane High Waist Full Briefs offer next-level comfort and protection with light to medium absorbency and a leak-proof layer extending up the back. Perfect for day or night wear, these knickers keep you confident and protected around the clock. The 4-layer design is moisture-wicking and odour-locking, ensuring you stay fresh and dry. Machine washable for convenience, Comfy Jane is your go-to for comfort, style, and leak-proof protection – effortlessly.
Material
Material
Made with:
Outer: 84% Nylon / 16% Spandex
Inner: 100% polyester / 80% polyester / 20% nylon / breathable TPU
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 | ||
| Eco-friendly | ||
| Affordable |
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: 4.4 / 5 from 166 reviews.
Very pleased
Love These!! Absolutely obsessed with these underwear, they look exactly like the photos, are comfortable, stretchy, moisture wicking and absorbent. They are by far the most comfy period undies I have ever owned! I now have quite a few pairs. Also, the returns policy and process with shinesister is so easy, I made a mistake when I ordered and got the wrong size and it was incredibly simple to change. Highly recommend these!
Finally the comfort I was looking for! I have birthed seven children. Therefore, I wear period panties every single day because a rogue sneeze can really be a bummer for me. I have had a hard time finding ones that are comfortable. They are often too stifling, or have a very thick, uncomfortable elastic at the top, or ride too low on the waist, or give a stark panty line, etc. The point is, I have not found a good combination of features in the many sets I have ordered. However, I am very happy with these ones! They are soft and light and breathable. They fit comfortably and land right where they should on the waist. They are not overly tight and causing bulges to form under your clothing. They are breathable and yet still offer all the protection you want for any leakage. I am really pleased with these, and will be ordering more.
These are amazing! No more stains on the sheets at night. No worries of leaks at work. These work so well and I wish I had These when I was younger. They are amazingly comfortable and they fit perfect. I don't wear them if I don't need them as they are a little bit bulkier than normal panties, but not bad. I wash in the machine and let air dry. I am very happy with this purchase.
I’ve been missing out! I just saw these and thought I will try them out. They are a game changer for me. I have no problem worrying about leaking when I sleep. They are breathable too. I never knew about period panties. I have always had cute underwear and of course the big ones for your cycle but, these make it that the pad doesn't slide and you are covered. I'm glad I bought these.
These are my second order. They are so comfortable
I bought 5 pairs and found out the sizing is not true to size if you are an 18 you need at least a size or two bigger as they do not have much give in them. But other wise they are brilliant well worth it. And peace of mind
Lovely comfortable fabric very good size
Very comfortable
Very comfy and light weight material and very satisfied will definitely buy again
Secure and comfortable
Nice
The sizing is way off. The size I wear for everything else was about 4 sizes too small in this brand so I had to send them back.
material feels good - find the crutch a little bulky
Loved them & the quality too.
Not true to size... I order the size I always buy at stores, & I couldn't even get these ones on!!! Really dissapointed.
Make bigger and larger sizes like size 24 and 26
Perfect, protects both human and clothing
Comfortable, stylish & works
A little tight around leg
Sizing is not realistic, larger sizes do not match what other brands provide. Only suitable for normal weight people
Does what the description says
Didn’t live up to expectations . Still need to wear a panty liner to avoid leakage! Extremely disappointing. Urine passes through to clothes !!!
Not use to this. So first time is weird. Threw it away.
Not high enough to waist .they rolled down so probably should have got bigger but usually 18 is fine
They fit like a midi brief not full brief. Also when bending to put on socks or shoes they would roll down. Wasn’t ever able to wear them for longer than 5 minutes before being very annoyed by the rolling so would had to change out of them.
Love the entire purchase, the high waist briefs and the black boy leg style. Wash them in the machine on delicate and dried them in the dryer in a laundry bag, every thing is fine they wash perfectly. Very comfortable.
I don’t dislike them but I don’t particularly like them I have bought the same off Temu for a fraction of the price
I think I could have bought a bigger size as legs are a bit tight
These undies are so comfy and they do a brilliant job.
The back feels very bulky, not much stretch in material not true to size
I purchased these to help with my mum’s incontinence. Unfortunately they didn’t work for her and did not keep her dry. They look and feel good though.
I do love the quality, but feel that they are a bit on the smaller side size wise. The Customer service was excellent.
Perfect for the little accidents which sometimes happen. Gives me loads of confidence
These are great, love the colours
I love these undies, and I love the way they come packed in the mail, in tissue paper, so lovely ❤️❤️
Perfect colour to wear inder lighter pants and skirts. No embarrassing wet spots
They work really well although when o first say them I thought they wouldn’t be much good but they are surprisingly good