Menstrual swimsuit (One piece) - Fir tree

The Marie fil menstrual swimsuit looks like a regular bathing suit. The difference? It adapts to your period and becomes menstrual protection when needed. Every woman can still trust it with her eyes closed.

Maillot de bain menstruel one-piece made in Quebec

Marie fil's one-piece menstrual swimsuit is entirely made in Quebec. It offers unique features:

• An absorbent colored lining black permanently integrated at the gusset level
  • hyper discreet
  • absorbent quickly the menstrual blood does not inflate in water
  • hiding a thin waterproof layer for watertight protection no risk of leaking in water or through the swimsuit

Bathing during light to heavy menstruation

The menstrual one-piece swimsuit adapts to menstrual flow. It can suit a light flow or be used alongside a menstrual cup. In any case, this menstrual-friendly swimsuit alone is sufficient.

Maillot de bain menstruel one-piece with insert

For long days at the beach or pool, the one-piece period swimsuit is also prepared thanks to snap buttons* located on the inside. If you want to be able to change the absorbent during the day, you can attach the following:

Insert for menstrual swimsuit

• • `included with the jersey, both inside a very handy waterproof pouch for transport`
  • composed of same absorbent fabric that used for the lining at the gusset level
  • interchangeable as many times as you want throughout your menstrual flow.

*Rest assured, the snap fasteners are:

• hyper-thin (so you never feel or see them through your swimsuit)
• in plastic (to avoid rusting due to humidity)

Eco-friendly menstrual swimsuit

Wearing the Marie fil menstrual underwear means choosing to feel comfortable and at ease in our own skin, in the water or not, whether menstruating or not. It also means making a positive difference both in your life and for the environment. 💚

The features of the Marie one-piece menstrual swimsuit fil

Your purchase will include:

• 1 swimsuit bottom, Épinette style (regular size) in black on the outside (On the photo, Annabelle is wearing size Large)

• 1 interchangeable insert
• 1 waterproof pouch (wetbag) 9'' x 9''

All of this, made with love in Quebec, for real (hello to my seamstresses Marie-Ève, Mégane and Andréanne 💚)

The underwear:

made with fabric OEKO-TEX®*, fully lined (to provide absolute support and maintain excellent opacity over the long term)

*The OEKO-TEX® fabric has it all:

• pilling-resistant, chlorine- and sunscreen-resistant
• soft and stretchy in both directions
• offering UV protection (SPF 50+).

The absorbent lining (at the gusset) + the interchangeable insert

Size chart for the one-piece menstrual swimsuit

Buying a menstrual swimsuit online isn't easy. You never know if the fit on us will be good. That's why Marie fil offers you this size chart. To order the right size, measure the fullest part of your bust using a tape measure positioned parallel to the floor. A correct measurement ensures a well-fitting swimsuit at your size!

Exchange Policy

If the jersey 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 jersey must not have been worn without another undergarment underneath for trying on.
• It must not have been washed or used.
• It must be returned in the same condition as it was sent to you.

Still unsure? I answer the most frequently asked questions right here here.

If needed, you can add absorbent, waterproof inserts here.