High-Waist Blue Menstrual Panties
The Marie menstrual brief looks like a regular pair of women's panties, except it is perfectly adapted for periods. Indeed, this feminine menstrual protection allows women to lead an active life every week of the month... And it does so while being an eco-responsible alternative!
Menstrual underwear made in Quebec
Discreet lining in natural fibers
A lining is already present in the period underwear to create a natural barrier for the panties. Although insufficient without a menstrual insert, it helps prevent surprises. The lining acts as a soft, built-in panty liner inside the period underwear. It is longer at the front and back than standard sewing patterns to ensure perfect protection.
The liner is available in two colors. Natural (unbleached natural shade): for sensitive or infection-prone skin that allows menstrual flow to be visible. Black: For easier maintenance since persistent stains are not visible.
Breathable and waterproof barrier inside the period underwear
Une breathable, waterproof barrier sewn inside the underwear is made of a thin layer of 100% PUL. This makes the menstrual underwear invincible to any blood leaks that might try to pass through it.
Light or heavy flow for menstrual underwear?
The menstrual brief adapts well to all flows. For added comfort, women with a heavy flow may prefer wearing a Diva Cup cup or of menstrual disc. For light to medium flow, the menstrual briefs alone are sufficient for daytime. An insert also allows you to change only the inner layer without having to change the briefs during the day.
Insert removable menstrual
It is possible to add a removable insert to the underwear to easily adapt to the menstrual cycle:
-
One insert for day or night Marie wire (optional) :
- Ensure a double absorbent and waterproof protection thanks to its composition identical to the gusset of the menstrual underwear.
- Snaps onsuper thin, you won't even feel them, we 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 period underwear means choosing to be comfortable and feel good in your skin, whether you’re menstruating or not. And together, now more than ever, we’re helping make a meaningful eco-responsible gesture for the environment. 💚
Buy a washable Marie fil menstrual underwear
- 1 menstrual panty made in Quebec with love, for real (hello to my seamstresses Nadia, Marie-Ève, Mégane et Andréanne💚)
- Optional: Day and/or night insert(s)
Composition of the menstrual panties
95% organic cotton
+
5% elastane
=
100% comfortable
Lining composition: What comes into contact with more sensitive areas
45% hemp*
+
55% organic cotton
=
100% natural
Why choose hemp?*
Le chanvre, c’est l’avenir pour l’environnement. Sa transformation nécessite
very little water and no chemicals. That's why Marie prefers hemp to bamboo. This fabric also has several properties:
• Antibacterial to reduce odors
• Hypoallergenic to eliminate irritation
• Maximum absorption
• Soft when blended with cotton
Choose the right size of washable menstrual underwear:
Buying menstrual underwear online can be tricky. Every woman deserves a proper fit and to be comfortable during her period. Here are some 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 panty!

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 menstrual underwear must not have been worn with another undergarment underneath for trying on.
- The menstrual underwear must not have been washed or used.
- The menstrual underwear must be returned in the same condition as it was sent to you.