Flora and Fauna Menstrual Panties
The Marie Fil period panties look like a regular pair of women's briefs, except they are perfectly adapted for menstruation. Indeed, this feminine menstrual protection allows women to lead an active life every week of the month... And all while being an eco-responsible alternative!
Period underwear made in Quebec
Discrete lining in natural fibers
An absorbent lining is already present in the menstrual underwear to create a natural barrier for the panties. Although not sufficient without a menstrual insert, it helps prevent unexpected leaks. The lining acts as a soft pantyliner integrated into 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 menstrual briefs
A breathable, waterproof barrier sewn into 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 greater comfort, women with a heavy flow might prefer wearing a Diva Cup cut or of a menstrual disc. For light to medium flow, the period underwear with 3 inserts is sufficient for daytime use. The insert also makes it possible to change only the inner part without having to change the underwear 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 by day or by night Marie thread (optional) :
- Ensure a double absorbent and waterproof protection thanks to its composition identical to the gusset of the menstrual underwear.
- Attaches using snap fasteners (ultra-thin, you won't 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 menstrual panties means choosing to be comfortable and feel good in your skin, whether menstruating or not. And together, now more than ever, we're helping make an important eco-responsible gesture for the environment. 💚
Buy a washable Marie fil menstrual panty
- 1 menstrual brief lovingly made in Quebec, 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 comes into contact with 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. That's why Marie prefers hemp to bamboo. This fabric also has several properties:
• Antibacterial to limit odors
• Hypoallergenic to eliminate irritation
• Maximum absorption
• Soft when blended with cotton
Choose the right size for washable menstrual panties:
Acheting menstrual panties online can be complicated. Every woman deserves a proper fit and to be comfortable during her period. Here are some tips regarding the Marie fil size chart.
Marie pad underwear size chart
Order the right size menstrual underwear by measuring your hips, above the buttocks, using a measuring tape held parallel to the floor. If you’re between two sizes, choose the larger one. Periods often come with bloating or a 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 returns and exchanges policy and in compliance with all of the following conditions:
- Menstrual panties must not have been worn with another undergarment underneath for fitting.
- The menstrual panties must not have been washed or used.
- The menstrual underwear must be returned in the same condition in which it was sent to you.
Still undecided? Visit the most frequently asked questions about menstrual underwear.