Frequently asked questions
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Our period-proof panties are designed to keep your periods and sneeze leaks safe. But unlike disposable period products such as tampons and pads, you wear period panties again and again. Just like your regular underwear. A win for you, and for Mother Nature.
It’s science, period. Our period-proof underwear absorbs menstruation blood, prevents leaks, controls odour and wicks moisture. The secret is Engineered Leak Tech™ - patented three-layer technology with built-in protection placed in the gusset of the underwear.
Our period panties come in many variations and are designed with different absorbency levels, designed for every period - from light to heavy. A lot like disposable menstrual products, in fact. Depending on the model, our underwear can hold from 5 ml to 50 ml of blood, which corresponds to about 5 tampons’ worth.
5 ml Mini ≈ ½ tampon/1 panty liner
10 ml Light ≈ 1 tampon/pad
20 ml Medium ≈ 2 tampons/pads
30 ml Mid-high ≈ 3 tampons/pads
40 ml High ≈ 4 tampons/pads
50 ml Super ≈ 5 tampons/pads
Our period-proof underwear is designed to keep you comfy and dry with an innovative built-in protection in the gusset - the patented Engineered Leak Tech™. It’s a completely leak-proof solution with three layers:
A wicking layer that efficiently transports the blood to the absorbent layer and keeps the surface in contact with the body dry.
An absorbent layer that holds the blood securely and undetectably, with an anti-odour and antimicrobial treatment.
And finally, a barrier layer that prevents any leakage of body fluids, while still being breathable.
In addition, our period underwear has a perfected fit that lets the Engineered Leak Tech™ work its magic. The fit hugs your body, securing the position of the underwear and making sure that the gusset stays in its place.
We design period-proof underwear for all levels of bleeding, from light to heavy periods. The highest absorbency level is called Super and can hold up to 50 ml, which is equivalent to 5 tampons or pads. Heavier bleeding than that is unusual, but we’re all different. And that’s just how it should be.
If you are worried about bleeding more, we recommend that you start by wearing your period underwear at home during a heavy day. That will put the underwear to the test - and put you at ease while you figure out how it works.
Sometimes one plus one equals three, and sometimes it doesn’t. As long as the absorbency underwear level is matched with your flow level, additional menstrual protection isn’t necessary. Our period-proof panties are engineered to keep you dry and safe all day.
However, some like to combine their period panties with other menstrual protection over the course of the entire menstruation cycle. This is of course a deeply individual thing, and we encourage you to explore and find your own optimal solution.
The main fabrics in the shell are either recycled polyamide or organic cotton. To get the right type of elasticity, we use low-cure silicone.
In our recycled micro range, 83% of the shell fabric is recycled polyamide. The fabric has an RCS Global Recycling Standard certification, OEKO-TEX Standard 100 certification, as well as Bluesign® approval.
In our organic cotton range, 79% of the shell fabric consists of organic PIMA cotton. The fabric has the OCS Global Recycling Standard certification and OEKO-TEX Standard 100 certification.
We recommend you go for the same size as you usually choose. Our period-proof panties are designed to feel snug at first, and then relax with washing and repeated wear for that perfect fit.
See our size guide here.
To make sure that you find your perfect fit, our underwear comes in a wide range of sizes.
Women: XS, S, M, L, XL, 2XL, 3XL.
Teens: 134/140, 146/152, 158/164, 170.
Our period-proof underwear is engineered to replace disposable products and menstrual cups completely. Thorough testing has shown that it's unnecessary to use a tampon, pad or a liner when wearing our panties.
If you prefer, you can combine them with disposables and wear the underwear as a complement. For example, when using tampons or menstrual cups our period-proof underwear with a low absorbency level (5 or 10 ml) can be worn as a backup in case of leakage.
Although we love a good swim, we don’t recommend wearing our period panties instead of a swimsuit since we can’t guarantee its absorption functionality in the water.
These period panties are primarily developed to absorb menstruation, but are also perfectly good at keeping small urine leakages and sneeze leaks safe. Bless you!
You might think this is just regular - albeit very comfortable - underwear. But it’s not. Our period-proof panties have been engineered through a unique combination of competence and technique where underwear experts, femcare scientists and material innovators have worked closely together.
The result is the patented Engineered Leak Tech™ technology that has been tested and verified over several years’ worth of research and development. It consists of three layers of advanced, high-performance, functional materials.
Furthermore, all our materials are sustainable and extremely durable - made to last for a long period of time.
This is one of our most commonly asked questions. And No. They don't. The anti-odour function in our panties works in two ways: 1) antibacterial so that bacteria cannot multiply and 2) odour eliminating so unpleasant odours cannot develop. The anti-odour treatment is applied to our wicking layer and absorbent layer of the gusset.
Yes, very much so. Regular period-proof underwear will most likely do the job perfectly well during the night. But, depending on your flow level and sleeping position (some of us just can’t keep still, right?) you might need a little extra protection when sleeping. And that's why we created night panties, that come in two different silhouettes:
The unique thing about our night underwear is the length of the gusset – it guarantees safety when you sleep. It doesn’t matter if you sleep on your back or snooze on your stomach (or maybe both?). The blood will stay exactly where it should, all night. Sweet dreams!
Yes, all our period panties are free from PFAS substances.
When we produce our panties, we use an anti-bacterial and odour-preventing treatment in the absorbent gusset, called Agion Active XL (antimicrobial substance silver copper zeolite). The treatment is one of the best currently available. Our period panties are certified by OEKO-TEX®, which means that the products have been evaluated for the content of substances harmful to health.
Why do we use this treatment?
We do this to prevent bacterial growth that leads to the panties starting to smell, which is the biggest concern we have identified in our customer surveys regarding period-proof panties.
Antimicrobial substances are strictly regulated in EU law and the treatment Agion Active XL has been approved for use in textile products.
Our partner Bodyline is a joint venture between MAS Holdings, Triumph International Germany and Mast Industries USA. They are the market-leader in producing fitted garments that provide superior next-to-skin performance, with their greatest strength being their employees.
They are a collaboration driven, concept-based hub for innovations, and their mission is to create value, delight, and inspire. They produce apparel for women in all shapes and sizes, from concept to carton.
With a purpose of being changemakers and with a goal set to find more sustainable solutions in every part of the process, the company thoughtfully produces our high-performance period underwear in one of their factories, based in Sri Lanka. The company has over 13 000 employees across five facilities in Sri Lanka and India, and the majority of the workforce is female.