Masmi Menstrual One-Piece Swimsuit UPF 50+, Chlorine & Saltwater Resistant (sizes: XS, S, M, L) 1 pc.

Size: XS, S, M, L

Manufacturer information

Manufacturer: COHITECH COTTON HIGH TECH, S.L., Colonia La Rabeia, S/n, Balsareny Barcelona, 08-660, Spain, info@masminaturalcotton.com

Exclusion from the right of return and exchange:

Intimate hygiene products such as menstrual underwear, pads, panty liners, tampons, menstrual cups, etc., once the packaging has been opened, are not eligible for return or exchange.

Legal basis: According to Art. 38 of the Consumer Rights Act of 30.05.2014 and EU Directive 2011/83 of 25.10.2011: the right of withdrawal from a contract concluded away from business premises or at a distance does not apply to a consumer in relation to a contract for the supply of goods delivered in a sealed package which cannot be returned for health protection or hygiene reasons if the package has been opened after delivery.

1. Why choose the Masmi menstrual swimsuit instead of synthetic alternatives?

The Masmi menstrual swimsuit, made with 100% organic cotton in the 3D absorbent layer, is healthier for intimate health than synthetic materials. A WHO report indicates that over 75% of conventional hygiene products contain toxins such as glyphosate, which can cause irritation or infections. Masmi’s organic cotton, free from pesticides and dioxins, minimizes this risk, and its breathable structure reduces moisture, helping prevent issues such as vulvitis, according to gynecologists. Enjoy carefree swimming — check Masmi at masmi.com.pl!

2. How does the Masmi menstrual swimsuit differ from other menstrual swimsuits?

The Masmi swimsuit stands out with 100% GOTS-certified organic cotton in the absorbent layer (77 g absorbency, equivalent to ¼ cup), rather than synthetics used by competitors. It is tested to ISO 105 — resistant to chlorine and salt water — and offers UV protection UPF 50+, ensuring safety while swimming and sunbathing. Other swimsuits often lose absorbency after 60 washes, while Masmi maintains its properties for up to 400 washes. Choose unique quality — visit masmi.com.pl!

3. Is the Masmi menstrual swimsuit safe for sensitive skin?

Yes! The Masmi swimsuit is hypoallergenic, made from certified organic cotton (GOTS) in the absorbent layer, without chemicals, perfumes or synthetics that can cause allergies or irritation. Studies show that natural materials reduce the risk of disturbing the vaginal microbiome, and gynecologists recommend them for sensitive skin. Additionally, the absence of films (polyurethane, polyester, etc.) in the absorbent layer eliminates the “plastic” rustling effect. Experience the comfort — visit masmi.com.pl!

4. What does the GOTS certificate mean and why is it important when choosing a menstrual swimsuit?

The GOTS (Global Organic Textile Standard) certificate guarantees that the cotton in the Masmi swimsuit comes from ecological cultivation without pesticides or herbicides, and production is free from toxins such as dioxins or chlorine, which studies indicate can enter the bloodstream within 4–8 seconds. It ensures safety for the body and the environment, with biodegradable materials. By choosing Masmi, you care for your health and the planet.

5. Is the Masmi menstrual swimsuit cost-effective in the long term?

Yes! Although the initial price (approx. PLN 200) may be higher, the Masmi swimsuit is an investment for years. With 77 g absorbency and durability up to 400 washes (100-wash guarantee), it will last around 5 years (about 60 periods), while 10 packs of disposable products cost approx. PLN 200–300 over the same time. You save money and reduce waste — choose Masmi’s economical solution.

6. How does the Masmi menstrual swimsuit support intimate health on holiday?

The Masmi menstrual swimsuit supports intimate health thanks to organic cotton, free from toxins such as glyphosate that WHO links to increased infections. The lack of synthetics reduces the risk of TSS and intimate irritation. ISO 105 tests and UPF 50+ protection add safety. Take care of yourself on vacation — see masmi.com.pl!

7. How do I care for the Masmi menstrual swimsuit so it lasts as long as possible?

Care is simple: wash at up to 40°C with neutral soap, without bleach or tumble drying. After swimming, rinse in fresh water to remove salt or chlorine. With proper care, the Masmi swimsuit maintains absorbency and shape for up to 400 washes. Start your holiday adventure with Masmi — visit masmi.com.pl!

8. Does menstrual blood leak into the water when swimming in a pool or the sea?

No, menstrual blood does not leak into the water. Here’s why:

• Special construction and absorbent layers

• The absorbent layer holds blood and moisture inside the material.

• The outer layer is water-resistant, preventing leakage to the outside.

• Physics at work

• When submerged, hydrostatic pressure makes it harder for fluids to flow out of the vagina.

• It can temporarily reduce bleeding because water pressure on the body gently “pushes back” the blood flow.

• Surface tension of liquids

• Water has high surface tension (about 72 mN/m at 20°C) due to strong hydrogen bonding, so it forms droplets and is less likely to penetrate material.

• Menstrual blood has lower surface tension because of proteins and lipids, so it more readily wicks into the absorbent layer.

• Close-fitting cut

• The menstrual swimsuit is designed to fit snugly around the groin and buttocks, limiting:

• The possibility of blood escaping to the outside, and

• Water getting inside.

Menstrual blood does not flow continuously under water. It often comes in waves or drops, typically with body movement or uterine contractions. During bathing, these factors are reduced, so less blood reaches the vaginal canal.

9. Does the Masmi menstrual swimsuit soak up water while swimming?

The Masmi menstrual swimsuit does not soak up water during swimming (or only minimally) because it is made with water-resistant materials that prevent water from entering the absorbent layer. How it works:

• Outer layer — water-resistant: acts as a barrier preventing water from getting inside.

• Inner absorbent layer: designed to absorb menstrual blood, not water, and is shielded from direct water contact.

• Good fit: close fit prevents water from being “pumped” inside while swimming or moving.

10. Why does the menstrual swimsuit absorb blood but can still be washed clean?

The answer lies in its special multi-layer construction and the difference between water and menstrual blood:

• Inner absorbent layer: made of organic cotton, it absorbs fluids (e.g., blood, mucus), but does not contact water during swimming.

• Movement and pressure during washing: mechanical action, warm water and detergent break down proteins and soils, allowing blood to rinse out.

• Absorptive properties: the material is engineered to absorb thicker fluids (blood, mucus) over time.