FAQ Marie Fil Menstrual Swimwear Information

How does a period swimsuit work?
The Marie fil menstrual swimsuit is like a regular women's swimsuit, but suitable for discharge, bladder leakage, sweating and…menstruation!
A discreet, ecological and absorbent menstrual swimsuit!
With a super discreet lining at the gusset level which has a technology allowing to absorb and collect the menstrual blood without swelling in the water.
The liner also hides a thin waterproof layer inside to eliminate any risk of leakage in the water or through the swimsuit .
You can always go swimming or sunbathing, incognito and 100% comfortable in your skin, menstruating a little, a lot or not at all!
The menstrual swimsuit is suitable for what type of menstrual flow?
For a light flow or in duo with your menstrual cup, the menstrual swimsuit alone is sufficient, whether you are in the water, on the beach or a joyful mix of the 2! 🌊 ⛱
And if you want to be able to change the absorbent part during the day or when you get out of the water, you can attach an insert (included with the swimsuit). The insert is interchangeable during the menstrual flow thanks to the press studs inside the swimsuit.
It's really a matter of personal comfort. 💚
Can you feel or see the snaps through the menstrual swimsuit?
Absolutely not, because they are super thin. Menstrual swimsuit snaps are designed for the comfort of the woman who will wear them!
What is the composition of the absorbent part of the menstrual swimsuit?
The absorbent part is made of 100% polyester hiding a thin waterproof layer inside. An all-in-one, innovative and eco-responsible fabric:
- made without any harmful chemicals
- single-handedly combining super absorbency for the lifecycle of the fabric, waterproofing and leak protection
- hypoallergenic
- antimicrobial to control bad odors
- free of endocrine disruptors such as PFOS, PFOA, lead, dioxins, heavy metals and BPA / free of phthalates / free of silver nanoparticles
A pure marvel!
Is the menstrual swimsuit resistant?
Oh yes! The entire menstrual swimsuit is made of recycled polyester ♻️ OEKO-TEX®: resistant to chlorine, sunscreen and pilling. It also offers UV protection (SPF 50+). 🙌🏻
The menstrual swimsuit is also fully lined to offer absolute support and a long lasting opacity ( even if we wear it often because we love it too much! 💚).
Does the menstrual swimsuit contain PFAS?
Marie fil menstrual swimsuit does not contain PFAS (PFOS and PFOA).
What is the maintenance of a menstrual swimsuit?
- After use, wring out the menstrual swimsuit than put it in the waterproof pouch (included with the swimsuit) to carry it home.
- If needed, rinse off the period blood with cold water until the water runs clear.
- Then, put the swimsuit in the washing machine, in cold water on the delicate cycle ( in a mesh washing bag, it's even better! )
- Hang the swimsuit or dry it flat.
That's it!
PS: Do not bleach or add fabric softener, otherwise absorbency could be compromise.
What styles of menstrual swimwear are available?



- Spruce model: regular size swimsuit: 3XS to 4XL. ( Annabelle (left) is wearing size Large )
- Sequoia model: high-waisted swimsuit : 3XS to 4XL. ( Cathy (center) is wearing size XLarge )
- Cypress model: cheeky swimsuit: 3XS to 4XL. ( Alyson (right) wears size Medium )
And while we're at it, 2 models of swimsuit tops are also available in the same stretch fabric to stay 100% comfortable, again and again:



- Poplar model: camisole top : 3XS to 4XL ( Annabelle (left) wears size Large )
- Willow model: top crossed at the back : 3XS to 4XL ( Cathy (in the center) wears the size 2XLarge and Alyson (on the right) wears the size Medium )
Is it possible to try them on to be sure of the correct size and fit?
Yes it is possible by visiting us at the Marie fil boutique located at 1720, 1 st avenue in Quebec.
For online purchases, it can be more tricky. We suggest choosing the swimsuit size you usually wear. You can also refer to the chart below.

We also have a returns and exchanges policy .
Are you curious to see all the models of our essential menstrual swimwear? It's this way!