MATERIAL
MATERIAL
WASHING GUIDE
WASHING GUIDERinse - wash - wear - repeat
1. If you've bled in your period pants, rinse them in cold water until the water runs clear.
2. Protect your period pants in a wash bag and wash them 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 care for your period pants here.
HOW DO PERIOD PANTS WORK?
HOW DO PERIOD PANTS WORK?Flow period panties are sewn with an integrated pad, consisting of a minimum of 3 technical layers, which direct fluid into the pad, absorb the fluid, and ensure that you don't bleed or leak through.
Absorption 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 underwear 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.
This was the beginning 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 absorbency levels
✔️ Comfort like regular underwear
✔️ A more eco-friendly alternative to disposable products
Our mission is to make menstruation freer, safer, and less inconvenient – without compromising on style or function.
Kind regards, Cathrine
What we are most proud of
5 good reasons why you'll love us
THE HEART ALWAYS COMES FIRST
We are also here to create changes beyond your daily life.
Our founder changed Danish legislation in 2021 by having the age limit for frozen eggs removed.
In 2025, we created the Red Flag campaign, which secured the Danish women's national handball team the right to wear dark shorts during the World Cup. And we will continue.
SAFETY AND SECURITY IMMEDIATELY AFTER
Despite the lack of legislation and safety requirements for menstrual products in the EU, we do not hesitate to take responsibility. We do not use PFAS, nanosilver - no magic "stay fresh" treatments on the absorbent layers. We third-party test our underwear for chemicals and use innovation without compromising your safety to address 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 THE MENSTRUATING, FOR THE MENSTRUATING
We create products that we ourselves need - and we 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
We know it. It's about much more than menstruation. It's about a changing body - throughout the entire cycle, month after month.
That's why we are redefining what 'period products' are beyond a practical solution. The best-rated absorbent underwear, sure, but also care that supports you and your body throughout the entire cycle.
That's Flow Cycle Routine.
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