Whales Menstrual Panties
The Marie fil menstrual panties look like a regular pair of women's underwear, except they are 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
An absorbent 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 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 and waterproof barrier inside the menstrual underwear
Une breathable, waterproof barrier sewn into the underwear consists of a thin 100% PUL layer. This makes the menstrual underwear invincible to any blood leaks trying to pass through it.
Light or heavy flow for menstrual underwear?
The period underwear adapts well to all flows. For added comfort, women with a heavy flow might prefer wearing a Diva Cup cup ou d'un menstrual disc. For light to medium flow, the menstrual panties with 3 inserts are sufficient for daytime. `The insert also lets you 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 underwear to easily adapt to the menstrual cycle:
-
One insert by day or by night Marie thread (optional) :
- Ensure double absorbent and waterproof protection thanks to its composition identical to the gusset of the menstrual underwear.
- Fastens with snap buttons (super 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 brief means choosing comfort and feeling good in your skin, whether you have your period or not. And together, more than ever, we’re helping to make an important eco-responsible gesture for the environment. 💚
Acheter washable menstrual panties Marie fil
- 1 menstrual underwear 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
Composition of the lining: 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. It'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 of washable menstrual underwear:
Acheting period underwear 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 panties
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 are between two sizes, choose the larger one. Periods often come with a bloated or sore belly.
We're looking for a comfortable menstrual underwear!

Returns and Exchanges 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 fitting.
- The menstrual underwear must not have been washed or used.
- The menstrual panties must be returned in the same condition as they were sent to you.
Still undecided? Visit the frequently asked questions about menstrual underwear.