ActiveMatters High Waist in Black
ActiveMatters High Waist in Black
High-rise design with fluid stretch, featherlight feel, and 12-hour leak protection.
Details
Details
The ActiveMatters Collection blends high-performance stretch with barely-there comfort. Designed to move with you, absorb effortlessly, and fuel your freedom. Invisible under clothes and built for reliable protection, holding the equivalent of 3 to 4 regular tampons.
Fit + Fabric
Fit + Fabric
Wear + Care guide
Wear + Care guide
Satisfaction Guarantee
Satisfaction Guarantee
Delivery + Returns
Delivery + Returns
Free Shipping
We offer free shipping on all orders over €75.
Fast Processing and Delivery
Most orders are shipped the same day and arrive in 4-7 working days. Deliveries to the US and Canada may be slightly longer.
Returns
We offer simple and straightforward returns on all unopened products. Full information can be found here.
Satisfaction Guarantee
We want you to feel confident trying our products, and if something is not right, we're here to help. Our Satisfaction Guarantee lets you try our reusable period products risk-free. Why not make use of it today?
Period Underwear Made for Motion
High-performance period protection that supports your body in motion and disappears under clothes.
Invisible Protection
Super-stretch fabric with raw edges moves with you and stays put, contouring to your body with a smooth, line-free fit that stays invisible, even in leggings.
Made for Motion
Breathable, flexible, and built to move. Designed to keep up through workouts, workdays, and everything in between.
3 Styles. 3 Colors.
Choose your fit: Thong, Brief, or High Waist. Each available in Black, Brown, or Beige to match your activity, outfit, or flow.
Frequently Asked Questions
Everything you need to know about how our period underwear works, how to care for it, and what makes it different.
How does period underwear work?
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.
Is period underwear hygienic?
Is period underwear hygienic?
Absolutely. Our period underwear is made from high-quality, antibacterial materials that ensure hygiene and freshness. Plus, they’re OEKO-TEX certified, meaning they meet high safety standards for fabric use, free from harmful substances.
What are PFAS, and are they used in AllMatters period underwear?
What are PFAS, and are they used in AllMatters period underwear?
PFAS (Per- and polyfluoroalkyl substances) are chemicals sometimes used to make fabrics water-resistant or stain-resistant. At AllMatters, we take your health and the environment seriously, so we do not use PFAS in our period underwear. Instead, we focus on safe, non-toxic materials and rigorous testing to ensure quality and safety.
How long can you wear period underwear?
How long can you wear period underwear?
Period underwear can be worn as long as your flow allows, but for a maximum of 12 hours at a time. Some prefer to use them during the day, while others use them as extra protection along with a menstrual cup or tampon. Generally, it is recommended to use the underwear for 8-12 hours for maximum protection and comfort.
You can also use the underwear at night, for spotting between periods, or for discharge. To ensure that the underwear provides the best protection, you should regularly check if they start to feel wet or if blood is visible at the seams - this is a sign that it is time to change them.
I loved these period underwear at first and was so excited to switch from my menstrual cup. Unfortunately, after only one full cycle of use, I woke up to find the back seam had completely split open, causing a very embarrassing leak. I was honestly heartbroken because I really loved the fit and comfort. Sadly, I had to go back to using my menstrual cup. I truly hope this was just a defective pair, because I really wanted to keep buying them.
Meget bløde og behagelige at have på. De sidder godt alle steder og det er rart at have noget på der ikke strammer. De suger blodet og man skal ikke bekymre sig om noget som helst.
De fungere som de skal, dog folder kanterne hurtigt
De er så behagelige at have på og jeg føler mig meget tilpas i dem
De absorberer ikke så godt som jeg kunne ønske. Blodet ligger ligesom ovenpå uden at jeg har blødt ret meget og det føles jo ret klamt. Derudover okay.
De gør det de skal, ingen uheld, føles næsten som almindelige trusser og er behagelige. Jeg synes dog hurtigt de bliver slappe i kanterne og ikke føles helt så god i kvaliteten som tencel trusserne.
God pasform - High waist. Jeg er en 40/42 og køber dem i L.
Har god sugeevne, men synes desværre de lugter midt på menstruationsdagene med “heavy flow”, og skifter til et nyt par og bløder videre i dem.
Men de er også geniale til post fødsel.
Super comfy, will buy more for sure
Elsker dem! Rigtig god beskyttelse, selvom de føles tynde.
Virkelig komfortable og trygge. Fungerer godt til løb. Og den brune farve er flot
Jeg havde høje forventninger, men de kradser desværre meget på bagsiden ved kanten af selve menstruationsbindet. Jeg kan ikke bruge dem.
The material is of great quality and super comfortable, it works quite well, I've bought it to prevent nocturnal leaks as I wear Disc or Cup depending on the day, and it is great.
I've tried to use it for some hours without the Disc and it worked well too. They are a great investment
Super dejligt materiale og ikke lige så tykke som de andre modeller, eller fra andre brands. Det gør også at de skjules bedre i tætsiddende tøj. Meget tilfreds. De er dog lidt små i størrelse og syningerne er lidt kraftige. Klart de bedste på markedet!
God pasform og passer i størrelsen. Jeg er i 38/40 og passer L.
fabrics are great, but the stitching on the insert itself is so rough that the edge feels sharp
Jeg ville så gerne give denne trusse flere stjerner, for jeg ELSKER pasformen og farven. Faktisk har ingen trusser nogensinde siddet så perfekt på mig. Desværre holder de altså ikke hvad de lover ift. '12 timers lækagefri'. Jeg bløder let til medium, og når jeg har haft dem på i 6-8 timer begynder man at kunne ane røde pletter på den anden side af absorberings pad'en - altså man begynder at bløde igennem. De reddede min bryllupsdag med deres diskrete design, som gjorde at man slet ikke kunne se dem under min brudekjole, og jeg har, trods absorberingsproblemet, faktisk købt flere af dem. Hvis du kun bløder let eller hvis du har mulighed for at skifte trusser i løbet af dagen, er de perfekte. Eller hvis du ligesom jeg har brug for et diskret design til et event.. Men hvor ville det bare være meget federe hvis de faktisk kunne absorbere en normal blødning. Jeg synes faktisk I burde ændre beskrivelsen af trussen.
It fits perfectly, it's light and feels smooth to the touch. It becomes part of your body. Great absorption. I'm happy to recommend it.
Muito confortáveis, fáceis de lavar e secagem rápida.
Delighted I added these to the basket, comfortable, great quality and they work well. Use as extra protection with the cup instead of a liner
Sidder præcis som de skal, helt bløde og vigtigst af alt så er der ingen trussekanter! Elsker dem
Unfortunately, I did not receive the order because it was returned to the sender by the post office 😟.
Our 2% Pledge
Every year, we pledge to donate AllMatters products for a total value of at least 2% of our annual revenue. In effect, your purchase helps us put safe, reusable period care into the hands of those who need it most, while driving the shift toward a waste-free future. Click on the link below to read more about our mission and commitment.
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.
