Skip to content

Trusted by 3+ million users worldwide

Free standard shipping on €75+ orders

 Rated 4.8/5 by our customers

Cart

Tencel™ Brief in Black

Tencel™ Brief in Black

  • Odor Control
  • Ultra Soft
  • PFAS-Free

Our best selling style, designed for those who want reliable period protection with everyday comfort.

✓ Holds the equivalent of 2-4 regular tampons
✓ Comfortable and breathable mid-rise fit
✓ Body safe with no PFAS added
✓ Up to 12 hours of leak protection
✓ Reusable and machine washable
✓ Satisfaction Guarantee

Color: Black

Style: Brief

Size: XXS
Absorbency: Moderate/heavy

Fast + free shipping on orders over €75
Expert customer support support@allmatters.com

Details

AllMatters Period Underwear is made to feel like your favorite pair: soft, breathable, and reliable. With built-in absorbent protection and a flattering fit, it gives you peace of mind without relying on disposables.

The Classic Brief combines everyday comfort with reliable protection. Designed with a mid-rise fit and flattering high-cut legs, it absorbs up to 20 ml of fluid and provides up to 12 hours of leak-proof protection, helping you feel fresh, comfortable, and confident throughout the day.

Made from ultra-soft, breathable TENCEL™ Lyocell and ethically made in Portugal, it features a merino wool inner layer that effectively controls odor, keeping you fresh all day.

Soft by Nature. Strong by Design.

Crafted with breathable and sustainable TENCEL™ for next-to-skin comfort that performs.

Reusable + Washable

Just rinse, wash, hang dry and reuse.

Leak-Proof Comfort

Our ultra-thin gusset holds 2-4 tampons' worth, for up to 12 hours of secure, non-bulky comfort.

Ultimate-Softness

Made from sustainable TENCEL™ Lyocell for superior comfort and breathability.

Frequently Asked Questions

Everything you need to know about how our period underwear works, how to choose your absorbency, how to care for them, and what makes them different.

Don't see your question? Click here.

How does period underwear work?

Our period underwear combines ultra-absorbent materials with leak-proof layers to lock in moisture. It feels just like regular underwear but works hard to keep you protected, no matter your flow. Simply wear, wash, and reuse.

  • 5 stars: 134 (81%)
  • 4 stars: 28 (17%)
  • 3 stars: 3 (2%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (1%)
M
Maja
Jeg er så glad for mine trusser

Jeg er så glad for mine trusser. Det var grænseoverskridende at fribløde, men jeg prøvede det af om natten og nu er der ingen vej tilbage. Det er virkelig rart bare at have dem på. Jeg har tænkt mig at bestille flere❤️

M
M C.R.
Tencel™ Brief in Black

I’m honestly so impressed with these period underwear. They’re not only really pretty, but also incredibly comfortable, you almost forget you’re wearing them.
What I love the most is how well they actually work. They last for hours without any issues, and there’s absolutely no feeling of dampness, which makes such a big difference throughout the day.

A
Anonymous
KÆMPE GAMECHANGER

Alle trusserne herfra er sindsygt nice. Det har været nærmest vis ikke livsændrene for mig at skifte helt over til menstrusser. Det virker som det skal, jeg tænker ikke på at bløde igennem, eller at jeg skal huske at tage en tampon ud eller noget. det føles som at have helt normale mormor trusser på! Jeg synes det er så rart at vide at man 1) self gør noget godt ifht at mindske ens klima aftryk men mest af alt 2) at jeg ved jeg gør noget godt for min krop ved at "fribløde" uden alle muloge blegemidler og kemikalier. JEG KAN VIRKELIG ANBEFALE, lav den investering og skift helt over til trusser frem for bind eller tampax!

L
Lise J.
Huller efter få vaske i flere trusser

Købte flere par til min datter, men efter få vaske (2-3 maks) er der kommet huller i yderstoffet af trusserne. Fik nye tilsendt da jeg reklamerede. Ved seneste vask var der tilkommet flere huller - ved ikke om det var i et af de par hvor der allerede var hul, men jeg kan desværre ikke anbefale trusserne - alternativt skal vaskeanvisningen ændres.

L
Louise
Lækre og virker!

Dejlige at have på, og virker!

C
Carolina
Reliable

I have heavy flow and wore these on one of the worse nights, with no leaks! I feel they're reliable and make me feel safe and clean.

T
Tine
Behagelige, men giver dobbelt balder

De er egentlig virkelig behageligt i materialet, men kantet er dsv. stram og gnaver både i min lyske, men giver mig også dobbelt balder. Jeg bruger normalt str. s, men gik op i m, i håb om at det var fint, det var det dsv. ikke. Så jeg kan helt klart anbefale, hvis man ikke har noget imod dette

M
Michaela G.
Super comfy

I've been skeptical about trying these, because I use cups and discs. But I've been diagnosed with fibroids and one of them sits on my bladder, which makes my disc self emptying difficult. So I thought I'd try these as back ups to stop leaks whenever I blow my nose or sneeze lol.
They're very comfortable, the padding is nice and thick. I have both the light/moderate and moderate/heavy briefs.
I do however need to trail these by themselves (no cups or disc) on my heaviest day's, to see how they match up, because I'd hate to be caught out with leaks.

B
Barbie
Best of all three panties I ordered

All three items I ordered are great (thongs, briefs and tencel brief in M blacks/moderate/heavy) but Tencel briefs ,to me, feel the safest and comfiest. Those are my first period panties and I’m amazed. Very cool technology.

A
Anonymous
Adoro a marca e recomendo 100%

Já conhecia os produtos desta marca e voltei a comprar! Recomendo 100%

C
Chara K.
Finally!

I ve been wanting to buy period underwear for years. And they are perfect. They are comfortable, the material is soft and they work amazingly.
I sized up a number and it feets so well. It hugs the body and I feel secure and comfy. As a woman who bleeds a lot the underwear do their work. The second day of my period that I bleed heavily I have to change 2 - 3 times but just because after 5-6 hours it feels wet, not because I had a leak. No leaks! I have purchased 4 pieces so I wash and reuse them during my period multiple times. It's easy and they dry quickly. I definitely recommend them. It's so comfortable finally!
I also recommend the high waste underwear if you want that warm sensation to your belly, I use them especially at night, though through the day I prefer the regular ones. Also, if you bleed a lot moderate/heavy are ideal. I use light/moderate mostly for the end of my period.
Thank you for this. I feel so good not having to wear toxic/plastic pads anymore!

N
Naomi S.
Great alternative!

I measured my size and the underwear fit me perfectly (I got XXS moderate/heavy) they did not dig in my skin, they did not feel like wet diapers and hold up pretty well.
The drying time takes a day, when they are being dried inside.
There was no leakage at all and I wore it for 9 hours.
You should change it after these 9 hours because it won't hold longer on a heavy day. (I wore it on the first & heaviest day)
Overall I really like them, but to get them clean it takes up alot of water.
I think it's still better than wasting material of our earth and filling it up with our "pad trash".
There was surprisingly NO smell, like at all, even after these many hours! Unlike when using pads.
The best part is, they fit like normal underwear and you forget you have them on & they don't move around like pads.

A
Anne
Behagelige, men bløder ofte igennem

Jeg har købt 2x moderate/heavy og 1x light/moderate. Trusserne sidder utroligt godt omkring livet og er meget behagelige at have på. Desværre har jeg nu gentagende gange oplevet at bløde igennem på trods af et kun moderat flow og få timers brug... Det ærgrer jeg mig over, når nu resten af oplevelsen er så positiv.

L
Lexi
Comfortable and reliable

I was really surprised by how much the underwear holds! Its comfortable and easy to wash, definitely my go to choice for period products now. ♡♡♡

G
GMG
First period pants

I love them. Paired them with the cup and it was so comfortable and hassle free. The sizing is very comfortable, I'm a 12-14 and the L is perfect with the XL being comfortable with a bit more give for the very bloated days.

I haven't worn then alone so can't speak on how much the hold for those heavy day 1-2. But I never bought them for that purpose. I bought the heavy flow for my own peace of mind. But for the end days they would absolutely work fine.

My only suggestion would be to buy at least 3-4 pants I bought 2 as a trial and keeping on top of the hand washing and drying was a little bit annoying but otherwise no complaints.

C
Constança R.
Confortable and pratical

I have 5 light/moderate undies and 2 moderate/heavy undies and I can say these are sooooo confortable. They hold my flow for 5 days perfectly. I recommend these all the time to my girls. 🙏🩸

S
Sabrina G.
Sehr zufrieden

Sehr angenehm zu tragen, geruchsneutral, Größe perfekt, Auslaufschutz garantiert :) auch nach dem Waschen in der Waschmaschine formstabil, bin positiv überrascht und es kann empfohlen auszuproben

M
M.S.
Period underwear

I have both the Light/Moderate and Moderate/Heavy and I’m very happy with their comfort and feels. No diaper-feeling whatsoever!

I would recommend AllMatters to also develop a Very Heavy-pair for heavy period days. Switching underwear throughout the day isn’t always that handy or comfortabel

Thank you so much Mien! We will launch a higher absorbency version later this year!! 🙏

N
Nana C.D.
SUPER tilfreds

Jeg var ikke skeptisk, men alligevel MEGET positivt overrasket. Jeg er super tilfreds med købet. Menstruationstrusserne fungerer helt perfekt - jeg følte mig helt tilpas og sikker hele arbejdsdagen, jeg havde dem på!

Kære Nana

Tak for din feedback! Skønt at høre at du er glad for trusserne

d
ditte b.
Fantastisk og trygt

Jeg ville virkelig ønske jeg havde købt period panties forlænge siden!

Tusind tak for de fine ord Ditte! Dejligt at høre at du er glad for dem

C
Catarina C.
Uma viagem só de ida!

Primeiro encomendei duas, e agora já encomendei mais três. Elas são de facto super confortáveis, super absorventes. Não se equiparam em nada aos pensos, na medida em que não precisamos de estar constantemente preocupadas em mudar, nem sentimos a cola do pensinho no sítio errado (como na bochecha do rabo, quem nunca?). Quem me dera ter começado a usar cuequinhas menstruais mais cedo. Recomendo vivamente!

M
Mafalda P.
Worth to give them a try!

I just love them! They're just so helpful and in the long run save me a lot of money. I could finally just try using them for the whole time I had my period without using any pads, and it was great! I might have to wear 3 in one day instead of 2 because sometimes I get really heavy flow, but they're perfect!

That’s amazing to hear, Mafalda! We’re so glad the underwear worked well for your whole period — and yes, even on heavier days, having that reliable backup makes such a difference. Thanks for giving them a try and for sharing your experience!

F
Filipa T.
Good enough

I love that this bikini from all the brands of period underwear I have are the ones that most resembles my normal underwear. I have very low flow at the moment so for now its absorption is enough. The only thing I don't like that the non absorbent part is not cotton and that it makes a rustle noise when I move. If that doesn't bother you, then I totally recommend. It does bother me a bit, makes me self conscious.

Thanks so much for your honest feedback, Filipa! We’re really glad you like the fit and that it works well for your flow. And we hear you on the fabric and sound — that’s super helpful for us to know, and we’ll definitely share it with our product team. Appreciate you taking the time to share your experience!

S
Siri
Det vatterede område dækker ikke nok i fronten

Trussen sidder fint til, men blødte ret meget igennem om natten, da blodet bevæget sig op over det vatterede område på forsiden af trussen.

K
Kathrine
Behagelige, gode, men mangler mere foran

De er behagelige og virker, som de skal.
Dog kunne jeg ønske, at der var 2-3 cm længere foran, da jeg har oplevet at bløde igennem om natten, fordi jeg sover på maven. Der er lidt dækket ind foran, men ikke nok til at det fungerer optimalt for mig.

B
Babs
Great!

Great and confortable, easy to wash! Will definitely buy again :)

Thanks so much, Babs! Happy to hear they’re comfy and easy to care for — that’s exactly what we aim for. Can’t wait to have you back for more!

A
Anonymous
Great product, will get more!

I'm so happy with my purchase, I only regret not trying this sooner! It's absolutely comfortable, odorless and I even forgot I was wearing it. Will definitely buy +3.

Thank you so much, Rita! We’re so happy to hear they’re working so well for you — and that they feel so comfortable you forget you’re even wearing them. That’s the goal!

M
Márcia

Great experience, super comfortable underware. When you have abundant period, it is important to combine with the cup or other method you use.

AllMatters

Real people. Genuinely helpful support.

When you reach out, whether it's a sizing question, a first-period panic, or a return, you're talking to someone who knows these products inside and out and actually wants to help. We're real people with real experience, and we want you to feel safe and secure using our products.

Contact support