flow - since 2021
Absorbent underwear for your postpartum
While the world may expect you to quickly ✨ bounce back ✨, we know that nothing is the same.
The body has given birth to a child. It bleeds. It leaks milk. It heals.
And in the middle of it all, you land – slowly – in a new version of yourself.
We celebrate the mess, the milk, the mucus, and the magic. Your postpartum flow.
At Flow you will find absorbent panties for postpartum bleeding and soft, wire-free nursing bras with built-in absorption – designed to give you security during a time when the body is working under high pressure.
Nursing bra with absorption
We deserve better
For every little leak
The fourth trimester <3 Not only do we build an entire human (sometimes more). We also grow a whole new organ to perform the task. The placenta. And almost *overnight* from the moment we give birth to the placenta, the biggest hormonal crash the human body can experience occurs. The high levels of estrogen and progesterone, among others, from during pregnancy plummet.
It's a massive shift for the body, a greater drop and change in our hormones than puberty, PMS, and menopause - combined.
Let that sink in.
It deserves care and attention - and safe products.
Best, Cathrine, founder
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 greater changes than just in your everyday 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 secured 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
Despite the lack of legislation and safety requirements for menstrual products in the EU, we do not hesitate to take our responsibility seriously. We do not use PFAS, nanosilver – 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 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 care.
BY PEOPLE WHO MENSTRUATE, FOR PEOPLE WHO MENSTRUATE
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 MENSTRUATION
We know. It’s about much more than just menstruation. It’s about a changing body - throughout the entire cycle, month after month.
That's why we're 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 your entire cycle.
That's Flow Cycle Routine.
FAQ
How long do period panties last?
The expected lifespan of socks and underwear in general is approximately 3 years. These are garments that are worn and used every day.
Since we do not apply chemical treatment to the pad, there is no function that deteriorates.
If you take good care of your period pants and wash them according to the instructions, the quality of our period pants is so good that you can easily use them for 3 years and even longer.
Here you will find our guide on how to best care for your period pants.
How do I choose the best fit for me?
We have menstrual panties that fit different bodies - whether you prefer a low rise, mid rise or high rise fit.
The Period Flow Brief and Period Flow Shorts both have a high waist, which is loved by many for the feeling of a hug around the belly.
Period Flow Cheeky has a more sporty look but with a wide and soft elastic at the waist - it is mid-rise.
Then we also have the classic low-waisted fit , which is a super nice, basic menstrual panty if discretion under the panty hem is *your thing*.
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.
Nursing bra with absorption
The nursing bra with absorption is a bit of a stroke of genius, and a good nursing bra can make everyday life a little easier.
At flow you will find underwire nursing bras with built-in absorbent technology, developed for those who want comfort, natural support and extra security during breastfeeding. Our absorbent cups help collect minor leaks of breast milk and can reduce the need for loose nursing pads.
At the same time, the bras are designed for easy breastfeeding with a soft crossover design, so you can quickly add your child - without buckles or click locks.
A nursing bra that works with the body
The first time after birth, the body changes from day to day.
The breasts may be sore, sensitive and change in size with milk production. That's why we've developed an underwire nursing bra that molds to the body and provides comfortable support without being tight.
The soft crossover design makes it easy to breastfeed with one hand, while the wide elastic under the breast provides natural support throughout the day.
Built-in absorption against breast leakage
The special thing about our nursing bra is the discreet absorbent layer, which is sewn directly into the cups.
It helps collect minor leaks of breast milk and provides extra security between feedings. For some, this may mean that the need for loose nursing pads becomes less, while others choose to use the bra as an extra layer of protection.
Organic merino wool against the skin
The inside of the cups is covered with organic merino wool, which feels soft against sensitive nipples.
Merino wool is naturally temperature-regulating and breathable, which makes it particularly comfortable in the first period after birth, when the skin is often extra sensitive.
That's why mothers choose flow
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Underwire nursing bra with absorbent cups
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Helps collect minor breast leaks
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Can reduce the need for loose nursing pads
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Soft crossover design without click locks
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Natural support without braces
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Organic merino wool against the skin
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Comfortable both day and night
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Developed for postpartum and breastfeeding
Created for the fourth trimester
At flow we know that the time after a birth is intense, beautiful and demanding.
That is why we develop products that provide a little more comfort and a little less worry in everyday life with breastfeeding, breast leakage and a body that is still changing.
Frequently asked questions
What is an absorbent nursing bra?
An absorbent nursing bra has a discreet absorbent layer built into the cups to help collect minor leaks of breast milk.
Can it replace nursing pads?
It depends on how much you leak. Many find that the bra is sufficient for minor leaks, while others combine it with nursing pads for larger milk production.
Is the bra without an underwire?
Yes. All our nursing bras are underwire-free and provide natural support through the wide elastic band under the bust and the well-thought-out fit.
How does the crossover design work?
The bowl can easily be pulled aside with one hand, so you can quickly put the baby to the breast without buckles or click locks.
Why is there merino wool in the bowls?
The organic merino wool is soft, breathable and naturally temperature-regulating, which makes it particularly comfortable against sensitive nipples.
Can I sleep with the nursing bra?
Yes. The soft, underwire-free construction makes it suitable both during the day and at night.
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