Masmi

SET -3% 2x Masmi Classic Menstrual Underwear, High Waist (Sizes: S, M, L, XL), 100% Organic Cotton

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Size: S
  • Zamów do 14:00 - wysyłka tego samego dnia
  • Dostawa w 24h (PL)
  • Szybka dostawa w UE  2–3 dni
Period underwear, made from the healthiest GOTS-certified organic cotton, is reusable underwear worn during menstruation that replaces pads, tampons and other feminine hygiene products. Our underwear has been recognized as the best underwear on the market by independent experts at Allegro and other independent rankings – see here: period underwear ranking (copy link to browser): https://allegro.pl/artykul/ranking-majtek-menstruacyjnych-2022-AgMwdkaYeSWnych 2022 – Allegro.plhttps://rankedo.pl/majtki-menstruacyjne-ranking/


Why choose Masmi period underwear?

  • 100% GOTS-certified organic cotton – the healthiest material for period underwear. No irritation of intimate areas, inflammations, fungal infections or chafing. The underwear is hypoallergenic.
  • Our underwear does not "rustle" while wearing, because it contains no foil (polyurethane, polyester, etc.) in the absorbent layer – 100% discretion and peace of mind for you in any situation.
  • Guaranteed up to 100 washes without loss of absorbency! – As the only company on the market we offer such a guarantee on our underwear. When following the manufacturer's washing instructions, Masmi underwear will retain its properties even up to 400 washes without loss of absorbency!
  • Highest absorbency (up to 77 grams of fluid) – that’s more than 4 super-size tampons. It guarantees comfort and safety all day or night. No marks on clothing after a full day at work/school and on bedding in the morning. Best solution for first periods – high absorbency and long protection combined with the simplest use compared to applying a tampon or changing a pad give girls unmatched comfort on those important days – one pair is enough for a full school day.
  • They perform brilliantly in extreme conditions – during workouts, trips, on planes, while traveling, during long meetings or conferences + all other life situations where changing a pad, tampon or emptying a cup can be difficult – you don’t have to give up your plans!
  • They are an excellent solution for women after childbirth, for incontinence, discharge and for women with disabilities – you save time and money with exceptional comfort of use.
  • They are planet-friendly – fully biodegradable, no component was tested on animals, they contain no superabsorbents, foils, plastics, artificial fragrance additives or allergenic ingredients. The most economical choice among all feminine hygiene products!

questions and answers:
  • Is it worth buying period underwear?
Among women who have switched pads, tampons or cups to period underwear, the feedback is very positive. Most say Masmi underwear works even on the heavy first days of a period. You need to remember to change a pad or tampon every 3-4 hours depending on flow – Mperiod underwear only needs to be changed twice a day. We recommend buying 2 pairs – you wear one while the other is clean and ready, but if you want to be sure there is always a freshly washed pair available, you can get more. Optimal number is 3 pieces.
  • Do you use a pad or tampon together with period underwear?

Period underwear is designed to provide protection on its own during menstruation. There is no need to wear an additional pad, but if you feel more comfortable with one, you can use it just as you would with regular underwear. You can also wear the underwear for extra protection while using a tampon or menstrual cup.

  • Are period underwear expensive?
Period underwear is highly efficient and durable, so the purchase is definitely economical. One pair can serve 3–4 years without loss of absorbency. With proper washing and drying care, this period may be up to 6 years (remember that underwear may last even longer, but absorbency will slightly decrease – this process will not be noticeable to you). The cost of pads or tampons over a similar period is 3 to 6 times higher (depending on brands used) than buying 2–3 pairs of underwear. Additionally, underwear offers incomparable comfort due to longer time between changes – 12 h for underwear vs 3–4 h for pads and tampons.
  • Do period underwear leak?
No, period underwear does not leak if used and cared for properly. However, you should observe your body and adjust wearing time according to your period flow.
  • Does menstrual underwear produce bad odor?
An unpleasant smell can sometimes occur if you have an intimate infection.
  • Do you feel wetness in period underwear?

If period underwear is washed properly, it does not lose absorbency and should keep up with absorbing moisture into the inner absorbent layer

designed to fit your body - available in 4 sizes: S, M, L and XL


How to wash and care for the products?
  1. Wash before first use.
  2. After use we recommend rinsing and/or leaving to soak before washing.
  3. Can be hand washed or machine washed with other laundry or in a separate laundry bag (if you prefer).
  4. If using a washing machine, wash at no more than 40º.
  5. For proper care use neutral soaps. Do not use chlorine, bleaches, fabric softeners, natural oils or Marseille soap, as they may affect absorbency quality.
  6. Do not use a tumble dryer as it may reduce their absorbency.

We guarantee unchanged absorbency of our underwear up to 100 washes!

When following the manufacturer's washing and drying recommendations, Masmi menstrual underwear will retain its properties even up to 400 washes! Reusable hygiene items provide safety, high absorbency, full freedom of movement, great comfort and are very economical.

composition:

96% certified organic cotton, 4% elastane

absorbent layer: 97% certified organic cotton, 3% PU

Hypoallergenic product, holding 4 certifications: GOTS, FSC, VEGAN and COTTON NATURAL.

in black color

product suitable for vegans

made in Spain

SET OF 2 PAIRS OF PERIOD UNDERWEAR

NOTE: MENSTRUAL UNDERWEAR SIZES MAY VARY SLIGHTLY BETWEEN BATCHES, SO IF YOUR MEASUREMENTS ARE BETWEEN TWO SIZES, E.G. S AND M, WE RECOMMEND CHOOSING THE LARGER SIZE.

THE PRODUCT COMES IN A CARDBOARD PACKAGE SEALED WITH A STICKER. FOR HYGIENE REASONS WE DO NOT ACCEPT RETURNS AFTER OPENING.


In our shop you will also find other underwear models (thecomposition and technical absorbency parameters of all Masmi underwear models are identical):

  1. ELEGANT model – with tulle inserts on the sides + lower waist (about 1–1.5 cm lower)
  2. MODERN model – lower waist (about 1–1.5 cm lower)


Masmi and Silver Care products differ only in outer packaging; the product is the same. If one brand is unavailable in an order, the equivalent from the other brand will be sent.

Manufacturer information

Producer: 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, pantyliners, tampons, menstrual cups etc., once the packaging has been opened, are not eligible for return or exchange.

Legal basis: Pursuant 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 off-premises or at a distance does not apply to a contract for the supply of goods delivered in sealed packaging which cannot be returned for health protection or hygiene reasons if the packaging has been opened after delivery.

1. How do Masmi menstrual underwear differ from other brands?

Masmi underwear stand out with 100% GOTS-certified organic cotton, free from plastic, polyester, or synthetics, minimizing the risk of irritation and infections (e.g., vulvitis, TSS), as confirmed by independent lab tests. They offer the highest absorbency (77–166 g vs 25–50 g in other brands) and a guarantee of up to 100 washes (competitors: max 60), without the rustling noise while moving or sitting. They are biodegradable, hypoallergenic, and ranked #1 on Allegro 2022–2024. Try the difference at masmi.com.pl!

2. Are Masmi menstrual underwear safe for sensitive skin?

Yes, Masmi menstrual underwear are 100% safe for sensitive skin! Made from GOTS-certified organic cotton, they are hypoallergenic and free from toxins, pesticides, dioxins, chlorine, perfumes, or superabsorbents that can cause irritation or infections such as vulvitis. Independent labs confirm that organic cotton reduces allergy risks and helps maintain vaginal microbiome balance compared to synthetics. Feel the comfort – check them at masmi.com.pl!

3. Why choose organic cotton instead of cheaper alternatives?

Organic cotton, as used in Masmi underwear, is healthier for intimate well-being because it is grown without chemical pesticides or fertilizers, eliminating the risk of harmful substances penetrating the body – vaginal mucosa absorbs them in 4–8 seconds. Synthetic materials like polymers or viscose can increase the risk of irritation, yeast infections, or even long-term problems such as endometriosis, as indicated by the Endometriosis Association (US). Masmi provides the natural safety that cheaper products can’t.

4. What does the GOTS certificate mean and why is it important?

The GOTS (Global Organic Textile Standard) certificate guarantees Masmi underwear are made from organic cotton, produced in an eco- and health-conscious way, free from toxic chemicals or heavy metals. It ensures the highest safety standards – no pesticides, dioxins, or chlorine – reducing the risk of infections and allergies. Masmi applies uniquely strict criteria, setting itself apart from other brands. Learn more at masmi.com.pl!

5. Are Masmi menstrual underwear cost-effective compared to pads?

Yes – Masmi underwear are a long-term investment! One pair guarantees up to 100 washes, lasting up to 5 years (approx. 60 cycles), while 10 packs of pads or tampons last only about 10–12 cycles. With absorbency from 77 g to 166 g (vs 25–50 g in competitors) and no need for frequent changes, you save both time and money.

6. Can Masmi underwear help with health conditions such as endometriosis?

Yes, Masmi underwear can support intimate health, even with endometriosis. Organic cotton, free from dioxins and chemicals, reduces the risk of irritation and hormonal disruptions that may worsen endometriosis symptoms – WHO highlights the link between dioxins and this condition. Their breathable, hypoallergenic design adds extra protection.

7. How long can I wear Masmi menstrual underwear during my period?

Masmi underwear are designed for up to 12 hours of wear thanks to absorbency from 77 g (standard) to 166 g (triple protection), far exceeding competitors (25–50 g). Perfect for day, night, or travel – no need to change every 2–3 hours like with pads or tampons. Care tip: wash at max 40°C without bleach to keep them effective for years. More details at masmi.com.pl.

8. Are Masmi menstrual underwear eco-friendly?

Yes, Masmi underwear are 100% biodegradable, thanks to organic cotton instead of plastic. They help reduce the 500 billion disposable menstrual products used globally each year. The Masmi factory runs on solar panels and a closed water system, minimizing environmental impact. Choose responsibly – discover more at masmi.com.pl!

9. How should Masmi menstrual underwear be washed?

Wash Masmi underwear at max 40°C with neutral soap, avoid bleach and tumble drying. This ensures up to 100 washes without losing absorbency (up to 400 with proper care). Simple, eco-friendly maintenance – full instructions at masmi.com.pl.

10. Do Masmi menstrual underwear leak during heavy flow?

No – Masmi underwear do not leak, even with heavy periods, thanks to triple absorbency (up to 166 g), far exceeding competitors (25–50 g). This is confirmed by Allegro rankings (2022–2024). Pick the right absorbency model and feel confident – order now at masmi.com.pl!

11. Where can I buy Masmi menstrual underwear and get a discount?

Masmi underwear are available at masmi.com.pl. Discount programs are shown directly on each product page. Explore the offer and start your journey with Masmi today!

Customer Reviews

Based on 4 reviews
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D
Dorota

Kupiłam z ciekawości i jestem bardzo zadowolona. Są wygodne, nic nie przecieka, łatwe w praniu. Idealne na dzień i noc. Zdecydowanie polecam!

A
Anna

Majtki genialne.

E
Emilia

Dokupiłem kolejne bo super się sprawdzaja

A
Aleksandra K.

Bardzo wygodne

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