Period Black Thong Sports Seamless
Back Period Black Thong Sports Seamless
Side Period Black Thong Sports Seamless
Detail Period Black Thong Sports Seamless
Available Colours Period Thong Sports Seamless
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Period Black Thong Sports Seamless
Back Period Black Thong Sports Seamless
Side Period Black Thong Sports Seamless
Detail Period Black Thong Sports Seamless
Available Colours Period Thong Sports Seamless

Period Thong Sports Seamless | Black

10 Reviews

Low absorption period panty / light flowMedium front coverageLight rear coverage

This ultra-thin period thong is the perfect choice for active women who seek comfort and discretion during their cycle. With protection equivalent to 2 tampons, and its Odor-Stop technology keeps you fresh and odor free. Designed with laser-cut technology, this thong offers a seamless, invisible design, ideal for wearing with tight clothing, ensuring no visible lines.

Available in an elegant black color.

More options
Colour
  • Black
Size
  • XS
  • S
  • M
  • L
  • XL
H633
IMMEDIATE SHIPPING
€17.95
Tax included Delivery 1-2 days in Spain - 5-10 days in Europe

Quantity Unit price You Save
3 €15.95 €6.00
6 €14.95 €18.00
 

Period panty with XIBPro technology

The Seamless Sport Period G-string by Libertad Menstrual is designed for light flows, with an absorption equivalent to 2 tampons, and is equipped with XIBPro anti-leakage and anti-odor technology, which ensures protection and freshness all day long, even on fields days. Thanks to its soft 85% polyamide and 15% elastane fabric, it conforms to your body without sacrificing comfort and flexibility, giving you the freedom to move without restriction.

This seamless thong, made with laser cut technology, eliminates visible seams and provides a perfect fit under tight clothing. If you're worried about the lines of your underwear showing under your leggings or tight dresses, invisible panties are the perfect solution! 

Do you love to dress as usual, but need discreet protection during your cycle? This thong is the perfect solution, combining comfort and protection without sacrificing style.

Order with free 24-hour shipping and start enjoying the freedom to move without worry!

Absorption / Flow
Low / 💧💧
Composition
85% Polyamide / 15% Elastane
Style
Sporty
Thong
Number of layers
4 🗒️🗒️🗒️🗒️
Front absorbent pad coverage
Medium 💦💦💦
Back absorbent pad coverage
Low 💦
XIB-Pro Technology *
Yes ✅
Seamless
Yes ✅
Use in sporting activities
Yes ✅
Use in first periods for girls and teenagers
Yes ✅
Night-time use
No ✖️
Post-partum / Menopause use
No ✖️
Use for light urine leakage
No ✖️
Main color
Black
XIBPro
10 Reviews

Los uso para entrenar y van genial, son ideales porque te protegen de las molestas costuras de las mallas evitando que se marque la zona intima, ademas de ser de buena absorción especialmente cuando comienzas o terminas la regla.
Verified Review. Sent by Alexandra on 09/02/2026

Incluso haciendo deporte. No he notado olor ni molestias. La he lavado a mano y también en lavadora y sigue igual. En general, muy contenta.
Verified Review. Sent by Anita on 25/09/2025

Es discreto y no molesta nada. Me pillé la talla S y la uso para el gimnasio. Con mallas queda discreto y no se mueve. 10/10. <3
Verified Review. Sent by Raqui on 24/07/2025

Gracias por el asesoramiento para comprar esta tanga para mi hija. Estamos encantadas als dos.
Verified Review. Sent by Beatriz Q. on 13/06/2025

Tres pedidos aquí y todo perfecto, lo que ofrecen lo cumplen. nada mas que decir que alegría a sus clientes.
Verified Review. Sent by María on 07/05/2025

Muchísimas gracias como siempre por vuestra rapidez y amabilidad. Saludos
Verified Review. Sent by Rocío S. on 06/04/2025

Para entrenar va genial, no molesta nada, el transportista tardó un día más de lo estipulado.
Verified Review. Sent by Sofi on 02/04/2025

El servicio es 5 **** ,muy rápido y las tangas muy bien empaquetadas. Gracias a todo el equipo. Un saludo,
Verified Review. Sent by Cristina on 01/02/2025

Nada que ver con las bragas menstruales chinas baratas. Esto es otro mundo menuda calidad
Verified Review. Sent by Teresa U on 04/11/2024

incluso haciendo deporte puesta no molesta. Repetiré seguro.
Verified Review. Sent by Inesita on 19/10/2024

Menstrual panties are a comfortable and eco-friendly alternative, offering superior absorption compared to traditional tampons and pads. They look like regular panties but are equipped with layers of special fabric to absorb menstrual flow. You can wear them for hours, even on heavy flow days, with complete confidence.

They are reusable and easy to wash, and you can use them as a standalone product or as a complement to tampons or menstrual cups to prevent leaks and odors.

They offer different absorption levels adapted to every stage of your cycle, ensuring you're always comfortable, day or night. Depending on the model, they can absorb the equivalent of 2 to 6 tampons. On our website, the droplet icons on each panty indicate the absorption level.

For lighter flow days, choose low-absorption panties or a thong; for heavy flow days or nights, higher-capacity panties are ideal. Having different types on hand ensures you're always ready.

One of the major benefits is the economic savings and being an eco-friendly option. You won't need other menstrual hygiene products, and by reducing disposables, you contribute to a sustainable change.

Comfort, security, and sustainability in one product. Try them out and feel the difference!

You can expand this information here ▶️.

We know that every body and menstrual period is different, so at Libertad Menstrual we offer three different absorption levels to meet your needs. Choosing the right absorption level for your menstrual panties is key to feeling comfortable and protected:

LOW ABSORPTION:

If you have a light flow or are in the final days of your period, this option is for you. Ideal for prevention or for the last days of your period when you don't need much absorption.

Holds the equivalent of 2 tampons approximately.

Light Flow

MEDIUM ABSORPTION:

If your flow is more steady but not too heavy, medium absorption panties are perfect. They will give you the comfort and peace of mind you need.

Holds the equivalent of 4 tampons approximately.

Moderate Flow

HIGH ABSORPTION:

For those heavy days when it feels overwhelming, high absorption panties are your best ally. They keep you dry and secure, worry-free.

Holds the equivalent of 6 tampons approximately.

Heavy Flow

How to wash your period underwear?

Wash and dry your period underwear properly to extend its lifespan and maintain its effectiveness.

 Properly washing and drying your period underwear

Step 1 - Rinse and soak

Rinse them under the tap. This is usually enough before washing them. If there are stubborn stains, soak them in cold water for 30 minutes. Use neutral soap and baking soda if necessary to remove them completely.

Step 2 - Washing

Wash them by hand or in the washing machine at under 30°C. Do not use fabric softener, as it may reduce their absorbency.

Step 3 - Air drying

Lay them out and hang them outdoors or indoors away from heat sources. If possible, dry them in the sun, as sunlight is an excellent natural disinfectant, but do not leave them exposed for too long.

IMPORTANT

Do not use a tumble dryer. Heat can damage the absorbent properties of your underwear. If necessary, use a low temperature.

 

The XIBPro technology combines advanced protection with exceptional comfort in menstrual underwear. With XIBPro, you will enjoy comfort and security throughout your cycle, even on days of heavy flow. At Libertad Menstrual, we bring you this innovation that redefines protection and comfort during your menstrual cycle. 

XIB-Pro Menstrual Technology period underwear

This technology uses an ultra-thin layer system designed specifically to ensure that menstrual underwear is completely leak-proof, without compromising comfort. With XIBPro, you can feel fresh, safe, and free, even on heavy flow days, with an absorption capacity equivalent to up to 6 tampons.

- The first layer, Dry-Feel, made from organic cotton, keeps you dry and avoids the uncomfortable feeling of dampness in the intimate area. Additionally, its advanced Odor-Stop technology neutralizes odors, offering you a sense of cleanliness and freshness throughout the day.

- The second layer, Active+, made with innovative microfibers, quickly absorbs liquid, allowing it to flow efficiently to the lower layers without causing a sensation of dampness. This layer ensures you stay comfortable for longer, even during high-movement situations.

- The third layer, Absorb+, provides extra absorption, effectively retaining liquid. With an absorption capacity equivalent to up to 6 tampons, this layer makes the menstrual underwear an ideal choice for heavy flow days, without the need for constant changes.

- Finally, the fourth layer, Leak-Block, is a waterproof barrier that completely prevents leaks. Its design ensures that liquids do not pass through to your clothes, giving you total protection and peace of mind throughout the day.

Advantages over other menstrual underwear:

  • Superior absorption: Thanks to the Active+ and Absorb+ layers, with the capacity to absorb the equivalent of up to 6 tampons, it offers unmatched protection.
  • Anti-odor technology: The Odor-Stop technology in the first layer ensures continuous freshness, eliminating the worry of unpleasant odors.
  • Prolonged comfort: The Dry-Feel layer also prevents the sensation of dampness in the intimate area, providing a comfortable experience throughout the day.
  • Leak protection: The Leak-Block layer guarantees no leaks, even on heavy days, giving you a peace of mind that other menstrual underwear can't always offer.

Discover all Libertad Menstrual products incorporating this XIBPro technology here ▶️.

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