Black and White Striped Menstrual Panties
The Marie Fil menstrual underwear looks like a regular pair of women's panties, except that it is perfectly suited for menstruation. Indeed, this feminine menstrual protection allows women to live an active life every week of the month... And it does so while being an eco-responsible alternative!
Menstrual panties made in Quebec
Discrete lining in natural fibers
An absorbent lining is already built into the menstrual underwear to create a natural barrier for the panties. While insufficient without a menstrual insert, it helps prevent mishaps. The lining acts as a soft, integrated panty liner inside the menstrual underwear. It is longer at the front and back than standard sewing templates to ensure perfect protection.
The lining is offered in two colors. Natural (color natural unbleached): for sensitive skin or skin prone to infections that allows you to see menstrual flow. Black: For easier maintenance since persistent stains are not visible.
Breathable, waterproof barrier inside the period panties
A breathable, waterproof barrier stitched inside the underwear is made of a thin layer of 100% PUL. This makes the menstrual underwear invincible against any blood leaks that might try to pass through it.
Light or heavy flow for period panties?
The menstrual underwear adapts well to all flows. For added comfort, women with a heavy flow might prefer wearing a Diva Cup cup or of a menstrual disc. For a light to medium flow, the menstrual briefs with 3 inserts are sufficient for daytime. The insert also allows you to change only the interior without having to change the underwear during the day.
Insert removable menstrual
It is possible to add a removable insert to the panties to easily adapt to the menstrual cycle:
-
A insert by day or night Marie thread (optional) :
- Ensure a double absorbent and waterproof protection thanks to its composition identical to the gusset of the menstrual panties.
- Fastens with snap fasteners (ultra-thin, you won't feel them, promise!), to stay securely in place no matter the activity.
- Interchangeable as many times as you want throughout your menstrual flow.
Wearing the Marie fil menstrual underwear means choosing to be comfortable and feel good in your skin, whether you have your period or not. And together, more than ever, we’re helping make an important eco-responsible gesture for the environment. 💚
Buy a washable Marie menstrual brief
- 1 menstrual brief made in Quebec with love, for real (hello to my seamstresses Marie-Ève et Mounira💚)
- Optional: Day and/or night insert(s)
Composition of the menstrual underwear
95% organic cotton
+
5% elastane
=
100% comfortable
Lining composition: What touches the more sensitive areas
45% hemp*
+
55% organic cotton
=
100% natural
Why choose hemp?*
Hemp is the future for the environment. Its processing requires
very little water and no chemicals. It's why Marie prefers hemp to bamboo. This fabric also has several properties:
• Antibacterial to limit odors
• Hypoallergenic to eliminate irritations
• Maximum absorption
• Soft when blended with cotton
Choose the right size of washable menstrual underwear:
Acheting menstrual panties online can be complicated. Every woman deserves a proper fit and to be comfortable during her period. Here are a few tips regarding the Marie fil size chart.
Size chart for Marie fil menstrual briefs
Order the right size of menstrual underwear by measuring your hips, above the buttocks, using a tape measure held parallel to the floor. If you're between two sizes, choose the larger one. Periods often come with a bloated or sore belly.
We're looking to get a comfortable menstrual underwear!

Return and Exchange Policy
If the period underwear still doesn't fit despite this precaution, it can be exchanged according to the return and exchange policy and in compliance with all of the following conditions:
- The period panties must not have been worn with another undergarment underneath for fitting.
- The menstrual underwear must not have been washed or used.
- The period underwear must be returned in the same condition in which it was sent to you.
Still unsure? Visit the most frequently asked questions about menstrual panties.