Masmi One-piece Menstrual Swimsuit UPF 50+, chlorine- and saltwater-resistant (sizes: XS, S, M, L) 1 piece.

Enjoy the pool, beach and water sports with freedom and calm!

Reusable menstrual swimsuit functioning as menstrual underwear - worn during menstruation, it replaces pads, tampons and other intimate hygiene products for women.

It ensures that your period does not restrict your physical activity or ruin your vacation plans!

The absorbent insert of the swimwear, contacting intimate areas, is made from the healthiest organic cotton, grown without pesticides, herbicides or chemical fertilizers. Our swimsuit is a hypoallergenic product, with as many as 4 certificates: GOTS, FSC, VEGAN and COTTON NATURAL.

The outer fabric of the swimsuit is chlorine- and seawater-resistant - tested for this purpose according to ISO 105.

Why choose the Masmi menstrual swimwear?

• 100% organic cotton with a GOTS certificate in the 3D absorbent layer- this means no irritation of intimate areas, inflammations, fungal infections or chafing.
• Highest absorbency (up to 77 g) - more than 6 super-sized tampons. It guarantees comfort and safety for a full day at the beach or pool.
• You don’t have to give up your plans!
• The swimsuit provides UPF 50+ UV protection helping reduce the risk of sunburn, photoaging and skin cancers.
• The outer fabric of the swimsuit is chlorine- and seawater-resistant - tested to ISO 105.
• Our swimsuit does not “crackle” when worn, because it does not contain foil (polyurethane, polyester, etc.) in the absorbent layer - 100% discretion and comfort in every situation.
• Guaranteed absorbency for up to 100 washes! - As the only brand on the market we offer such a guarantee for our swimwear. When following the manufacturer’s washing instructions, Masmi swimwear will retain its properties even up to 400 washes without loss of absorbency!
• 3D absorbent layer of the swimsuit prevents leaks, guaranteeing maximum safety and protection.
• It’s an excellent solution for women with urinary incontinence - even then you can freely enjoy physical activity.
• Planet-friendly - fully biodegradable, no product component was tested on animals, contains no superabsorbents, foil, plastics, artificial fragrances or allergenic ingredients.

Q&A

• With the menstrual swimsuit do you also use a pad or tampon?

The menstrual swimsuit is designed to provide protection during menstruation on its own. There is no need to wear an additional pad or tampon insertion, but if you feel more comfortable, you can use additional protection.

• Is the menstrual swimsuit expensive?

Menstrual swimsuits are very efficient and durable, so their purchase is definitely economical. They can serve us for 3 - 4 years without a decrease in absorbency. By following the manufacturer’s washing and drying recommendations this period can extend to even 6 years (remember, the swimsuit may last even longer, but its absorbency will gradually decrease - this process will not be noticeable to you).

• Does the menstrual swimsuit leak?

No, the menstrual swimsuit does not leak, provided it is used and cared for properly. However, you should monitor your body and adjust the wearing time of the swimsuit to your needs depending on the intensity of the period.

• Does the menstrual swimsuit emit an unpleasant odor?

Unpleasant odor may occur sometimes when you have a vaginal infection.

• Do you feel menstrual blood dampness in the swimsuit?

If the menstrual swimsuit is washed properly, it does not lose absorbency and keeps up with absorbing blood into the absorbent layer.

• Does menstrual blood leak into the water while swimming in a pool/sea?

No, menstrual blood does not leak into the water, here is why:

special construction and absorbent layers

Menstrual bikini bottoms (menstrual underwear versions for swimming) are made of special materials, which:

• the absorbent layer retains blood and moisture inside the material,
• the outer layer is waterproof, preventing leakage to the outside.

Thus, menstrual blood stays contained in the internal layer, and water from the outside does not penetrate inside.

physical phenomena

When submerged in water, hydrostatic pressure acts, which:

• makes it harder for fluids to flow out of the vagina,

That’s why bleeding seems weaker underwater.

surface tension of liquid

• Water: has high surface tension (about 72 mN/m at 20°C) due to strong hydrogen bonds between water molecules, which leads to minimization of surface (e.g., droplet formation).
• Menstrual blood: its surface tension is lower than water due to proteins, lipids and other surfactants in plasma and endometrial secretions, which reduces cohesion forces at the liquid-air boundary. As a result, menstrual blood more easily soaks into the surface of the absorbent layer compared to water, which tends to form distinct droplets and soak less easily into the bikini/swimwear insert.

well-fitting cut

Menstrual bikinis are designed to fit tightly to the body, especially in the groin area and around the buttocks. This limits:

• the possibility of blood leaking outward,
• water entering inside.

Blood does not flow freely underwater. It’s worth noting that menstrual blood does not “flow” continuously - it flows in waves or drops, often only when changing body position or during uterine contractions. During swimming these factors are smaller, so less blood reaches the vaginal canal.

• Do Masmi bikinis/swimsuits soak up water during swimming?

Bikinis and swimsuits Masmi do not soak up water during swimming (or soak up only minimally), because they are made of waterproof materials that do not allow water from outside to pass to the absorbent layer.

• How exactly does it work?

outer layer – waterproof

This part is resistant to water absorption because it is made of a waterproof material – acts as a barrier preventing water from entering inside.

absorbent – inner

Designed to absorb menstrual blood, not water. It works on capillary absorption principles - but is shielded, so there is no direct contact with pool or sea water.

good fit

Adhering to body (especially in the groin and around the buttocks) prevents water from being forced inside during swimming or movement.

• Why do menstrual bikinis/swimwear absorb blood and can be washed?

The answer lies in the special, multi-layer construction of the swimming menstrual underwear and the difference between water and menstrual blood.

The inner layer – absorbent, is made of organic cotton, which absorbs fluids (e.g., blood, mucus), is hidden under the outer layer, so there is no contact with water during bathing.

movement and pressure

During washing (manual or machine), mechanical breakdown of structures (dirt, proteins, blood), use of warm water and detergent occur, which reduce surface tension, making the fabric able to “absorb”.

special absorption properties

The absorbent layer has been designed to absorb thicker fluids (blood, mucus) for a long time.

tailored to your body - available in 4 sizes: XS, S, M and L

How to wash and care for the menstrual swimsuit?

1. Wash before first use.
2. After use, rinse and/or soak before washing.
3. Can be washed by hand or in the washing machine with the rest of the laundry or in a separate wash bag (if you prefer).
4. If using a washing machine, wash at a temperature not higher than 40º.
5. For proper care, use neutral soaps. Do not use chlorine, bleach, fabric softeners, natural oils or Marseille soap, as they can affect absorption quality.
6. Do not use a tumble dryer, as it may reduce its absorbency.

As the only brand on the market, we offer an unchanged absorbency guarantee for our menstrual swimsuit up to 100 washes!

By following the manufacturer's washing and drying recommendations, Masmi menstrual underwear will retain its properties even up to 400 washes!

Reusable hygiene products provide safety, high absorbency, full freedom of movement, great comfort and are also very economical.

composition:

outer layer: 80% recycled polyamide, 20% elastane

bottom layer: 82% recycled polyamide, 18% elastane

absorbent layer: 94% certified organic cotton, 6% PU

in black

suitable for vegans

made in Spain

PRODUCT IS IN A CARDBOARD PACKAGE SEALED WITH A STICKER. UPON OPENING, FOR HYGIENE REASONS, RETURNS ARE NOT ACCEPTED.

Masmi and Silver Care products differ only in external packaging, the product is the same.

In case one variant is missing in the order, a counterpart from the other brand will be sent.