Back to Menstrual panties for all flow levels

25 productsFlow guide

Seamless Menstrual Underwear

Discreet, effective, and ultra-comfortable, our seamless menstrual underwear is designed to accompany you everywhere, without compromise. Thanks to their innovative technology, they offer up to 12 hours of protection without moisture or odor, even in the case of heavy flow.

Their secret? A seamless design for perfect support and total invisibility under clothing. Made from Oeko-Tex certified technical fabrics, they respect your body and your intimate flora.

Choose your flow, your size, your color… and experience your period more peacefully, with complete discretion.

25 products

  • BEST-SELLER

    Selene microfiber menstrual panties

    Flow: Medium Equivalent to 2 tampons
    35,00 € 4.5 out of 5.0 stars, 837 reviews
  • BEST-SELLER

    Artemis microfiber menstrual panties

    Flow: Heavy Equivalent to 4 tampons
    39,00 € 4.5 out of 5.0 stars, 334 reviews
  • BEST-SELLER

    Amphitrite Period Boxers

    Flow: Medium Equivalent to 2 tampons
    35,00 € 4.5 out of 5.0 stars, 179 reviews
  • BEST-SELLER

    Aphrodite period thong

    Flow: Light Equivalent to 1 tampon
    32,00 € 4.7 out of 5.0 stars, 150 reviews
  • TEEN

    Hébé period panties for teens

    Flow: Medium Equivalent to 2 tampons
    29,00 € 4.6 out of 5.0 stars, 159 reviews
  • TEEN

    Hestia period boxers for teenagers

    Flow: Medium Equivalent to 2 tampons
    29,00 € 4.6 out of 5.0 stars, 136 reviews
  • Ready-made packs

    Bundles ready to order, cheaper than buying individually.

    • NEW-10%

      Medium-flow Discovery Duo - BLUE MOOD

      • 2 SELÉNÉ panties
      63,00 € Regular price70,00 €

      or 31,50 € each

    • NEW-10%

      Discovery Duo - Sweet Nights Adult

      • 1 Boxer Léto
      • 1 HÉCATE panty
      72,00 € Regular price80,00 €

      or 36,00 € each

    • NEW-10%

      Heavy-flow Discovery Duo - BLUE MOOD

      • 2 ARTEMIS panties
      70,00 € Regular price78,00 €

      or 35,00 € each

    • NEW-10%

      Starter Pack - Night & Day Adult

      • 1 Boxer Léto
      • 1 SELÉNÉ panty
      63,00 € Regular price70,00 €

      or 31,50 € each

    View all packs
  • TEENBEST-SELLER

    Phebe menstrual panties for teens

    Flow: Heavy Equivalent to 4 tampons
    32,00 € 4.7 out of 5.0 stars, 56 reviews
  • -20%

    Selene microfiber menstrual panties - Red

    Flow: Medium Equivalent to 2 tampons
    27,50 € Regular price35,00 € 4.5 out of 5.0 stars, 837 reviews
  • Hecate microfiber menstrual panties

    Flow: Very heavy Equivalent to 6 tampons
    45,00 € 4.8 out of 5.0 stars, 47 reviews
  • Calliope High-Waisted Shaping Menstrual Panties

    Flow: Medium Equivalent to 2 tampons
    39,00 € 4.4 out of 5.0 stars, 60 reviews
  • TEEN

    Lucina period boxers for teenagers

    Flow: Very heavy Equivalent to 6 tampons
    35,00 € 4.7 out of 5.0 stars, 36 reviews
  • FREE CHOUCHOU-10%

    Microfiber menstrual panties Séléné leopard + scrunchie FREE

    Flow: Medium Equivalent to 2 tampons
    35,00 € Regular price39,00 € 4.5 out of 5.0 stars, 837 reviews
  • -20%

    Artemis microfiber menstrual panties - Red

    Flow: Heavy Equivalent to 4 tampons
    29,90 € Regular price39,00 € 4.5 out of 5.0 stars, 334 reviews
  • Héméra detachable menstrual panties - Heavy flow

    Flow: Heavy Equivalent to 4 tampons
    44,00 € 4.6 out of 5.0 stars, 15 reviews
  • NEWPERF

    Nova high-performance absorbent sports briefs

    Flow: Medium Equivalent to 2 tampons
    35,00 € 5.0 out of 5.0 stars, 7 reviews
  • NEWWEB EXCLUSIVE

    Comète Menstrual Panty – Smoon x Simone Pérèle / Medium Flow

    Flow: Medium Equivalent to 2 tampons
    45,00 € 4.8 out of 5.0 stars, 4 reviews
  • NEWTEEN

    Erato menstrual boxer briefs for teens

    Flow: Heavy Equivalent to 4 tampons
    35,00 € 5.0 out of 5.0 stars, 2 reviews
  • Sold out

    Karma menstrual panties - Smoon x Simone Pérèle / Medium flow

    Flow: Medium Equivalent to 2 tampons
    50,00 € 4.2 out of 5.0 stars, 5 reviews
  • NEW

    Léto menstrual boxer briefs

    Flow: Heavy Equivalent to 4 tampons
    35,00 €
  • Sold out

    Bag pouch

    8,00 € 5.0 out of 5.0 stars, 2 reviews
  • NEWACTIVE

    Luna menstrual underwear

    Flow: Medium Equivalent to 2 tampons
    24,99 €
  • NEWACTIVE

    Diane menstrual underwear

    Flow: Heavy Equivalent to 4 tampons
    29,99 €
  • WEB EXCLUSIVENEW

    Menstrual Panty Comète – Smoon x Simone Pérèle / Abundant Flow

    Flow: Heavy Equivalent to 4 tampons
    50,00 € 1.0 out of 5.0 stars, 1 reviews
  • Sold out

    Menstrual Panty Karma - Smoon x Simone Pérèle / Abundant Flow

    Flow: Heavy Equivalent to 4 tampons
    55,00 € 1.0 out of 5.0 stars, 1 reviews

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Frequently asked questions

Your questions, answered

Absorbency, size, materials, washing: everything you need to know before choosing your period panties.

What are seamless menstrual panties?

Panties whose fabrics are joined without thread or topstitching: the absorbent zone is built into the fabric, so nothing rubs or shows. Séléné, Artémis, Calliope, Héméra, the Aphrodite thong, the Amphitrite boyshorts and the teen models Hestia, Lucina and One Size are made this way.

Why wash seamless panties at 30 °C maximum?

Their fabrics are heat-bonded: hotter water would weaken the bonding. Wash them cold or at 30 °C, without fabric softener, and let them air dry. All the tips are on the washable menstrual panties page.

All our answers

A question about your flow or your size?

Write to us and the team will reply by email.

contact@smoon-lingerie.com

Size guideHow to choose your period panties

All about period panties

Designed to combine comfort and efficiency, the seamless menstrual underwear by Smoon is the ideal solution during your period. Thanks to its innovative technology, it offers up to 12 hours of continuous protection, even in the case of heavy flow. The seamless design ensures perfect support and great comfort throughout the day. Adapted to all body types, this period panty is available in a wide range of sizes, from XS to XXL.

Its innovative technical fabric, certified Oeko Tex Standard 100, is guaranteed free from harmful chemicals. It protects your intimate flora while providing maximum absorption of menstrual flow. Whether your flow is medium or heavy, you benefit from reliable and discreet period protection. You can wear your menstrual underwear every day: at home, at work, on the go, or even during sports sessions, without fearing leaks or odors.

Which seamless menstrual underwear should you choose?

To choose the right seamless menstrual underwear, several criteria should be taken into account to ensure protection adapted to your flow and needs:
- our models are specifically designed to absorb medium to heavy flow.
- thanks to our detailed size guide, you can choose the model perfectly suited to your body type.
- several colors are available (including timeless and discreet black), as well as single items or economical packs.
- our menstrual products are offered at a fair and attractive price, with regular offers and free delivery starting from a certain purchase amount.

A clean and certified composition

Each Smoon period panty is made from high-quality technical materials sourced from France and Italy. The composition combines polyamide, elastane, and a breathable absorbent membrane, ensuring optimal protection during your period. All components are Oeko Tex Standard 100 certified, free from toxic substances, to respect your intimate health.

Our period panties are moisture-wicking, leak-proof, and ultra-breathable, providing absolute comfort even during your heaviest flow days.

Caring for your seamless menstrual underwear

After each use, we recommend rinsing your panty in cold water, then washing it by hand or in the machine at 30°C with a gentle detergent. Avoid tumble drying to preserve the technical fibers.

Thanks to this easy care routine, your washable menstrual underwear will last for many years, reducing your waste and expenses in the long term.

Menstrual underwear designed for every woman

At Smoon, we believe every woman deserves period protection that suits her. That’s why our seamless menstrual panties are available in multiple sizes and adapt to all body shapes, whatever your needs may be. Whether you’re looking for heavy-flow protection, a discreet everyday model, or a solution for the most intense days of your cycle, you will definitely find the right product.

Still hesitating between several products, or wondering which menstrual underwear best suits your flow? Check out our product page, our selection guide, or contact our customer service directly for personalized advice.

Fast delivery and products offered at the best value for money.