Nurses Are Switching To This Innovative Bamboo Leakproof Underwear
Made with RapidCell™ Bamboo Viscose that holds the leak the second it lands, so you stay dry through a full 12 hours, while it looks and feels exactly like regular underwear.
“Finally, underwear that feels this good. It keeps me dry all day, no clammy feeling, no irritation.”
- Linda, 58
You Stay Dry All Shift
No More Sitting In Wet, Clammy Underwear
Invisible Under Thin Scrubs, Even When You Bend
"I Finally Got Through A Shift Dry"
"My leaks used to embarrass me on shift, and I had tried everything to stop them from showing through my scrubs...
Pads, liners, a spare pair in my bag... You name it, I tried it.
And while these helped a bit, they all shifted, bunched and left me hot and sweaty under my scrubs!
Which is why I decided to try bamboo leakproof underwear and let me just tell you... Out of everything I've tried, it's by far the best idea out there!!
I'll put a pair on before my shift, work all day without thinking about it once, and go home without a single trip to my locker.
They look and feel exactly like regular underwear, and even when I do leak, I'm not sitting in a cold wet mess because the bamboo pulls it off my skin!
Overall I'm really thankful for Sistera's bamboo underwear and all the confidence, comfort and freedom it's given me :)"
On a 12-hour shift there is no break to change. Every room, every chart, every handoff, you are on your feet.
That is why Sistera is built to hold on its own, with a 3-part protection system:
Step 1: RapidCell™ Bamboo Viscose pulls the leak in the second it lands, so it cannot spread onto your scrubs.
Step 2: The DryLock Layers lock the moisture inside, away from your skin.
Step 3: The Raised Side Barriers make sure nothing escapes sideways, even when you squat or bend over a bed.
And it all stays slim, soft and invisible under your scrubs :)
Leakproof Underwear That Looks & Feels Just Like Regular Underwear
You Stay Dry All Day
Cotton soaks up a leak and holds it against you. Nylon and synthetics trap it on the surface. Either way, you end up feeling wet for hours.
Sistera's RapidCell™ Bamboo Viscose pulls moisture in fast and keeps it off your skin. Not less wet. Actually dry, all day long.
No More Sitting In Wet, Clammy Underwear
With cotton and synthetics, the wet sits on the surface, right against your skin, wherever you go.
Sistera pulls the wet off your skin and into the fabric. The part touching you stays dry, so you can stop checking yourself all day.
Nobody Will Notice
Because the bamboo soaks the leak in so fast, Sistera does not need thick, bulky padding to catch it.
It is soft, light, and quiet when you move. No pad outline when you sit, bend or walk. No lines, even under thin or fitted clothes. Nobody knows but you.
No Smell, All Day Long
Trapped moisture is what feeds the smell. When a leak sits in warm, damp fabric for hours, that is where odor builds.
Sistera's RapidCell™ Bamboo keeps the surface dry, so odor-causing bacteria have far less chance to build. No sweat smell, no urine smell, nothing to hide.
Why Choose Sistera?
- We are a small, family-owned business that truly cares about every woman who wears Sistera
- Our support team is always here to help, with fast, friendly answers over email, 24/7
- Your order is protected by our 90-Day Perfect Fit Guarantee
- Sistera looks and feels exactly like regular underwear, except it keeps you dry
- Rated 4.9 out of 5 by 1,137 women who finally stopped worrying about leaks
Our 90-Day Perfect Fit Guarantee
Getting the right fit is part of getting the right protection. Every body is different, and we want yours to feel perfect.
Try Sistera at home, wash them, and if the fit isn't right within 90 days, simply email us your order number and preferred size. We'll send you a new size. No need to return the original pair.
Frequently Asked Questions
Will it really hold a leak, or do I still need a pad?
Yes, it really holds it. No pad needed. Each pair holds about half a coffee cup's worth of liquid.
RapidCell™ Bamboo Viscose pulls the leak in the second it lands, the DryLock Layers lock it inside, and the Raised Side Barriers stop anything from escaping at the sides.
Will one pair last my whole shift?
Yes. Sistera is built for long days on your feet. Put a pair on before clock-in and it keeps you dry through a full 12-hour shift, no changing in the break room.
Can anyone see it through my scrubs?
No. Because the bamboo absorbs so fast, Sistera does not need thick padding. It is slim, soft and quiet when you move. No outline, no bulk, no crinkle, even under thin scrubs.
Will I smell?
No. Odor builds when moisture sits in warm, damp fabric. RapidCell™ Bamboo keeps the surface dry, so odor-causing bacteria have far less chance to build. No urine smell, nothing to hide.
Will I feel wet after a leak?
No. The moisture is pulled off your skin and into the fabric, so the part touching you stays dry. The bamboo also runs 2 to 3 degrees cooler against your skin, so no clammy, sweaty feeling.
I tried leakproof underwear before and it failed. Why is this different?
Because the problem was the fabric, not you. Most leakproof underwear uses cotton and synthetics that absorb too slowly, so the leak spreads and escapes before it is caught.
Sistera is built on RapidCell™ Bamboo Viscose, which pulls moisture in the instant it lands. It is not a better version of what failed you. It is a different fabric.
Is it worth it compared to pads?
Yes. Sistera is machine washable and lasts 3 to 5 years. No more buying pads every week, no more running out mid-shift. One pack replaces years of disposables.
What size should I order?
Order your usual size. If you are between sizes or like a bit more room, size up.
Still not sure? Our 90-Day Perfect Fit Guarantee has you covered. If the fit is not right, email us your order number and preferred size and we send you a new size. No need to return the original pair.
How do I wash them?
Just throw them in the washing machine with your regular laundry and hang them to dry. They keep their absorbency wash after wash.
How fast does it ship?
Your order ships within 24 hours, with free discreet shipping. Plain packaging, nobody knows what is inside.
RapidCell™ Bamboo Briefs
RapidCell™ Bamboo Briefs
- Stops leaks before they show
- Invisible under any outfit
- Blocks odor all day long
- Free shipping
Couldn't load pickup availability
What Is RapidCell™ Bamboo?
RapidCell™ Bamboo Viscose is the fabric Sistera is built on, and it is the reason it works when other leakproof underwear does not.
Most leakproof underwear is made from cotton, nylon, and other synthetics. These fabrics are too slow. A leak sits on the surface, spreads sideways, and escapes out the leg before it is ever absorbed.
RapidCell™ Bamboo Viscose works differently. Each bamboo viscose fiber absorbs moisture in fast, the second a leak lands, so it is pulled off the surface instead of spreading or escaping out the leg. The same structure lets heat move out instead of trapping it, so you stay cool and dry all day.
Soft, breathable and OEKO-TEX certified. Real protection that feels like normal underwear.
What size should I choose?
Sistera is designed for a beautifully sculpted, close-to-the-body fit. If you prefer a bit more ease or are between sizes, we highly recommend sizing up for the perfect blend of comfort and coverage.
90-Day Perfect Fit Guarantee⌄
Getting the right fit is part of getting the right protection. Every female body is different, and we want yours to feel perfect.
Try Sistera at home, and if the fit isn't right within 90 days, simply email us your order number and preferred size. We'll send you a new size completely free. No need to return the original pair.
Will it feel bulky or can people see it?⌄
No and no. Sistera is slim, soft and fitted. It looks exactly like regular underwear from the outside. No bulk, no outline, no crinkly sounds. Nobody will ever know you're wearing it.
What makes it different is what's built inside.
The Body-Mapped Gusset covers the full zone where leaking lands.
The DryLock Layers lock moisture away the instant it makes contact.
The Raised Side Barriers make sure nothing escapes sideways.
How do I wash and care for them?⌄
Machine wash cold with your regular laundry. No special care needed. The antimicrobial layers handle odor naturally. With proper care each pair lasts 3 to 5 years, replacing thousands of disposables.
Materials & Certifications
Second layer: 80% polyester fiber + 20% nylon
Third layer: Breathable TPU
Fourth layer: 95% Viscose made from bamboo + 5% spandex
Certifcations: OEKO-TEX®
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1,137 reviews
I've spent the last three years in a state of chronic resignation, quietly reorganizing my entire life around where the nearest bathroom is.
See moreIt is so hard to explain the psychological toll it takes when you have to put your pretty, lacey undies away.
See moreI used to have a quiet giggle to myself about the women who needed these products.
See moreBladder problems don't just affect your body; they consume your entire day.
See moreThe stigma is honestly the hardest part. Needing absorbent products makes you feel unclean and embarrassed.
See moreI was so tired of the pad math, constantly checking if I had enough in my bag.
See moreI would have paid $10,000 just to have my teenage bladder back for one day.
See moreThere is nothing more embarrassing than being a grown woman who wets herself in public.
See moreI'm childfree and in my 30s, and I felt so isolated struggling with incontinence.
See moreMy lifelong wish was just to be able to go to bed and not wake up three times a night.
See moreI was so tired of sizing chaos, ordering the same size in different colors.
See moreI've tried every other premium brand out there, and they always felt like they were missing something.
See more