High-waisted period shorts
MATERIAL
MATERIAL
WASHING GUIDE
WASHING GUIDERinse - wash - wear - repeat
1. If you've bled in your underwear, rinse them in cold water until the water runs clear.
2. Protect your underwear in a laundry bag and wash your underwear with similar colors at 30-40 degrees.
Tip: You can advantageously wash with our Allergy Certified special detergent Bloody Clean.
3. Dry them inside out on a clothesline - and you're good to go again.
👉 Read our full guide on how to take good care of your underwear here.
HOW DO PERIOD PANTS WORK?
HOW DO PERIOD PANTS WORK?Flow menstrual panties are sewn with an integrated pad, consisting of a minimum of 3 technical layers, which direct liquid into the pad, absorb the liquid, and ensure that you don't bleed or drip through.
Absorbency is approximately equivalent to:
Light flow: 2-5 mL
Moderate flow: 5-10 mL
Heavy flow: 10-15 mL
👉You can read much more about how absorbent panties work here.
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We deserve better
Why choose period panties from Flow?
After two fertility treatments and two births, I no longer wanted to use menstrual products that went inside the body – I wanted to be able to bleed in peace.
That was the beginning of Flow – the first period panties on the Danish market.
Today, we make period panties with a focus on comfort, quality, and responsible production – created by people who menstruate themselves.
✔️ Soft, skin-friendly materials
✔️ Different absorbency levels
✔️ Comfort like regular underwear
✔️ A more environmentally friendly alternative to disposable products
Our mission is to make menstruation freer, safer, and less inconvenient – without compromising on style or function.
Sincerely, Cathrine
What we're most proud of
5 good reasons why you'll love us
THE HEART ALWAYS COMES FIRST
We are also here to create bigger changes than just in your daily life.
Our founder changed Danish legislation in 2021 by having the age limit on frozen eggs removed.
In 2025, we created the Red Flag campaign, which ensured the Danish women's national handball team the right to wear dark shorts during the World Championship. And we will continue.
SAFETY AND SECURITY IMMEDIATELY AFTERWARDS
Despite the lack of legislation and safety requirements for menstrual products in the EU, we do not shy away from our responsibility. We do not use PFAS, nano-silver - no magical "stay fresh" treatments of the absorbent layers. We third-party test our underwear for chemicals and use innovation without compromising your safety to solve odor issues.
PREMIUM PRODUCTION
We produce in Portugal, Denmark, Lithuania, and Turkey – always using the best materials such as organic cotton, organic merino wool, and ECONYL®.
Our partners are the best in their respective fields, and several of our factories are GOTS-certified, which sets requirements for employee welfare.
BY PEOPLE WHO MENSTRUATE, FOR PEOPLE WHO MENSTRUATE
We create products we ourselves need - and test them thoroughly (so yes, they are tested with real menstrual blood). In addition, we have a test panel consisting of hardcore and dedicated members from our community who take the task seriously.
MORE THAN MENSTRUATION
We know it. It's about much more than just menstruation. It's about a body in change – throughout the entire cycle, month after month.
That's why we are redefining what 'period products' are, beyond a practical solution. The highest-rated absorbent underwear, sure, but also care that supports you and your body throughout your entire cycle.
That is Flow Cycle Routine.
Do you need help?
Frequently asked questions about menstrual panties
Det kan komme an på materialerne, din trusse er lavet af.
Mesh er meget stretchy og ligger du imellem to størrelser, så vil vi foreslå at size ned.
Lyocell og økologisk bomuld er lidt mere faste materialer, og her vil vi foreslå, at du tager din normale størrelse.
Det kommer an på trussens sugeevne, som står indikeret med dråber. Vi har menstruationstrusser til både moderat og kraftig blødning.
Bløder du meget kraftigt, så kan du med fordel bruge dine trusser sammen med en menstruationskop eller -disk.
Vi har også absorbernede trusser med lav absorbering til hverdagsbrug.
👉Har du brug for mere absorbering, så kan du vælge menstruationstrusser i stedet.
A discreet fabric band is sewn into the bottom of the panties.
Regardless of the style, the pad consists of a minimum of 3 absorbent layers - a top layer that conducts the liquid down into the next layer, which is similar to a towel. At the bottom you will find a membrane that ensures that the liquid does not pass through the panty.
👉 Read more in our guide to menstrual panties.
Rinse - wash - wear - repeat
1. If you have spotting in your panties, rinse them in cold water until the water runs clear.
2. Protect your panties in a laundry bag and wash your panties with similar colors at 30-30 degrees.
Tip: You can wash with our Allergy Certified special detergent Bloody Clean .
3. Dry them inside out on a clothesline - and you're good to go again.
👉 Read our full guide on how to take good care of your panties here.
Hvis du går fuldt ind på absorberende trusser og erstatter alle trusseindlæg og bind, så vil du have behov for 10-12 par - afhængigt af hvor let adgang du har til en vaskemaskine.
Men bruger du kun absorberende trusser kun til din menstruation, så foreslår vi 5-7 par.
Jo flere trusser, jo nemmere hverdag.
Derfor giver vi også bundlerabatter på flere par.
"Lækage" er egentlig ikke et ord, vi synes er så lækkert i sammenhæng med kroppen.
Det lyder mere som en utæt motor.
Men du bløder ikke direkte igennem dine trusser. Hvis de har nået deres 'max' på kapaciteten, så bløder du ud til siderne.
Det kan du tro, de er!
Forbrugerrådet Tænk har sat et stort fokus på menstruationstrusser i 2022, og deres eksperter siger også god for metoden:
1) Skyld i koldt vand.
2) Vask ved 40 grader.
3) Lufttør på snor.
👉 Læs hele vores guide til, hvordan du passer godt på dine trusser her.
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High-waisted menstrual shorts – For nighttime and heavy periods
High-waisted menstrual shorts, also called Period Flow Shorts, are our most covering menstrual shorts – developed for those who want maximum security on the heaviest menstrual days, at night or in the postpartum period.
Made from organic cotton, these soft shorts have a low leg that stays in place all night long. Combined with our longest and widest absorbent panel, they provide extra protection when you need it most.
It is therefore no coincidence that Period Flow Shorts are among our best-rated models.
Sleep safely during menstruation
Many people find that night is the time when they worry the most about bleeding.
That's why we've designed our period shorts with an extra long and wide absorbent panel that provides more coverage both front and back. The high waist and short legs help the shorts stay in place even when you toss and turn in your sleep.
The result is menstrual panties for the night that allow you to sleep with greater peace of mind.
Developed for heavy menstruation and postpartum
Period Flow Shorts are designed for heavy menstruation and can also be a comfortable choice during the postpartum period, where many people want soft and covering underwear.
If you have very heavy periods, you can combine the shorts with a menstrual cup or menstrual disc for extra protection on the heaviest bleeding days.
Soft organic cotton for maximum comfort
The shorts are made of soft organic cotton, which feels pleasant against the skin and provides natural, breathable comfort.
The distinctive curved signature seams accentuate the body's curves, while the small leg provides extra coverage without feeling heavy or bulky.
That's why many people choose Period Flow Shorts
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Menstrual shorts for heavy periods
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Ideal as menstrual panties for the night
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Extra long and wide absorbent panel
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High waist and short legs that stay put
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Made from soft organic cotton
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Suitable for the postpartum period
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Produced in Portugal
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Free from PFAS and biocides
Made for those days when you need a little extra
Some days call for more comfort, more coverage and more security.
Period Flow Shorts are designed for those days. For the first nights of heavy periods. For postpartum. Or when you just want to feel completely calm – day and night.
Frequently asked questions
Are Period Flow Shorts good for sleeping in?
Yes. The shorts are designed with an extra long and wide absorbent panel, high waist and short legs that stay in place at night. That's why they are especially popular as menstrual panties for the night.
How heavy menstruation can they be used for?
Period Flow Shorts are designed for heavy periods. If you have very heavy bleeding, we recommend combining them with a menstrual cup or menstrual disc for extra protection.
Can they be used after childbirth?
Yes. Many people choose Period Flow Shorts during the postpartum period because they provide soft comfort, extra coverage, and a comfortable fit.
Why do shorts have legs?
The short legs help the shorts stay in place and provide extra coverage, which many find to be an advantage – especially at night and during heavy menstruation.
Are they warm to wear?
No. The shorts are made of soft organic cotton, which feels comfortable and breathable against the skin.
How do I wash menstrual shorts?
Rinse them in cold water after use, wash them at the recommended temperature without fabric softener, and let them air dry. This will help them retain their absorbent properties best.
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