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We deserve better
Why choose Flow period underwear?
After two fertility treatments and two births, I no longer wanted to use menstrual products that went inside my body - I wanted to be able to bleed in peace.
That was the start of Flow - the first period underwear on the Danish market.
Today, we make period underwear with a focus on comfort, quality, and responsible production - created by people who menstruate themselves.
✔️ Soft, skin-friendly materials
✔️ Different absorption levels
✔️ Comfort like regular underwear
✔️ A more eco-friendly alternative to disposable products
Our mission is to make menstruation more free, secure, and less bothersome - without compromising on style or function.
Kind regards, Cathrine
What we are most proud of
5 great reasons why you'll love us
THE HEART IS ALWAYS FIRST
We are also here to make bigger changes than just in your daily life.
Our founder changed Danish legislation in 2021 by removing the age limit for frozen eggs.
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 Cup. And we will continue.
PEACE OF MIND AND SECURITY IMMEDIATELY AFTER
Trotz fehlender Gesetze und Sicherheitsanforderungen für Menstruationsprodukte in der EU übernehmen wir selbstverständlich Verantwortung. Wir verzichten auf PFAS, Nanosilber und jegliche künstliche „Frische-Behandlung“ der Absorptionsschichten. Unsere Slips werden von unabhängigen Laboren auf chemische Inhaltsstoffe geprüft. Innovationen ohne Kompromisse bei Ihrer Sicherheit zur Lösung von GeruchsproblemenDie
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 MENSTRUATORS FOR MENSTRUATORS
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 PERIODS
Wir wissen es. Es geht um viel mehr als nur um die Menstruation. Es geht um den Körper im Wandel – während des gesamten Zyklus, Monat für Monat.
Deshalb definieren wir „Herrenbekleidung“ neu – über eine rein praktische Lösung hinaus. Natürlich bieten wir die bestbewertete, saugfähige Unterwäsche, aber auch Pflege, die dich und deinen Körper während des gesamten Zyklus unterstützt.
Es ist Ablaufzyklusroutine.
FAQ
Wie lange halten Menstruationsunterwäsche?
The general expectation for the lifespan of socks and underwear is approximately 3 years. These are garments that are subject to wear and tear and are used daily.
Since we do not add chemical treatments to the pad, there is no function that degrades.
If you take good care of your panties and wash them according to instructions, the quality of our period panties is so good that you can easily use them for 3 years or even longer.
Here you will find our guide on how to best care for your period panties.
How do I choose the best fit for me?
Wir haben Menstruationsunterwäsche für unterschiedliche Körperformen – egal ob Sie eine niedrige, mittlere oder hohe Leibhöhe bevorzugen.
Periodenablauf kurz Und Period Flow Shorts Beide Modelle haben einen hohen Bund, der von vielen wegen des Gefühls einer Umarmung um den Bauch geliebt wird.
Freche Periodenblutung hat einen sportlicheren Look, aber mit einem breiten und weichen Gummibund - es ist mittelhoch geschnitten.
Dann haben wir auch noch die klassische Hüftpassform, was ein super schöner, einfacher Menstruationsslip ist, wenn Diskretion unter dem Slipsaum *Ihr Ding* ist.
How long can I use them at a time?
It depends on your flow and your cycle day - as well as the absorbency of the panties.
But changing your menstrual panties at least morning and night is good hygiene - think of your absorbent underwear just like pads and tampons. They need to be changed every now and then.
But unlike tampons, for example, you are not at risk of Toxic Shock Syndrome, as menstrual panties are a non-invasive menstrual product.
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