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Is period swimwear a good solution for swimming during your period?

Written by: Camille Raynaud

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Published on

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Last updated on

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Time to read 11 min

Pool and periods, a real headache? Swimming calmly on your period is no longer a dream! No more sarongs and shorts at the beach to hide! No more shame, embarrassment, stress or insecurity.

Period swimsuit, period bikini bottom, or menstrual swimsuit – call it what you like, we’ve got the solution to help you finally enjoy a calm, carefree summer! And we’re not talking about period panties you wear under your dress, jeans, or pyjamas; we mean an actual bikini you can fully immerse in salt or chlorinated water that still manages to absorb your period without leaks!

A period swimsuit is an innovative, comfortable, safe, eco-friendly, practical, stylish and economical solution.

Ideal for the beach, pool, or water activities, whether in salt or chlorinated water, it’s your go-to companion as soon as the sunny days arrive. A true innovation, it’s perfectly natural to have questions about its effectiveness. Discover how the period swimsuit is an innovative menstrual product. Learn how it works, how it captures your menstrual flow just like its counterpart, the period panty. Also find out how to choose it, use it, and care for it properly.

At Louloucup, we offer two ranges of menstrual bikinis: one for women and one of menstrual swimsuits for teens. Flow, body shapes, age — we can all use this practical and reliable alternative to disposable tampons! Let’s get started!

💧 Period swimwear: how it works, benefits, and usage

What exactly is a menstrual swimsuit?

A period swimsuit or period bikini is swimwear designed to be worn during your period. It looks like a regular swimsuit but includes discreet absorbent layers to capture and absorb your menstrual flow.


**Louloucup period swimsuits** use technical materials with three distinct layers that provide optimal leak protection:

  • a wicking layer in contact with your intimate area,
  • Why choose Louloucup period underwear?
  • and a waterproof barrier on the outside of the swimsuit.

It’s completely normal to have questions. The period swimsuit is still not a widely known or recognized product in 2026. Yet the feedback and reviews from our users are truly unanimous! This is great news for anyone looking for a healthy and easy alternative to tampons.

3 Q&As about period swimwear that everyone asks:

  • Does it leak?
    No! A period swimsuit won’t leak if you use it correctly and if you have a light to medium flow. Thanks to its multi-layer leakproof technology, you’re well protected. However, if you have a heavy flow, we recommend wearing a menstrual cup along with your menstrual bikini.

  • “Does it work in the water?”
    Yes! Thanks to its technical fabrics, heavy flow is captured in the absorbent core and can’t dilute into the water afterwards! Nothing to worry about.

  • “Can you swim for a long time?”
    Yes, you can fully enjoy yourself! You can have fun, dive, swim without any problem.

How does a period swimsuit work?

The technology is based on a multi-layer system that works even when submerged. It prevents leaks thanks to a waterproof barrier while absorbing blood. This type of swimsuit captures the blood and holds it in, without it dispersing into the water once you’re in the pool or sea. A real feat!


The swimsuit remains effective while you’re in the water thanks to its waterproof outer layer. Out of the water, the lining reactivates its absorbent function to manage leaks.

The advantages of menstrual swimwear compared with classic protection

Waste reduction: period swimwear is an eco-friendly alternative to disposable products; a menstrual swimsuit helps reduce plastic waste from tampons and pads. It’s a truly eco-conscious choice to protect the environment.

Long-term savings: the absorbent period swimsuit is an economical solution with a one-time investment, avoiding repeated purchases of conventional sanitary products. It lasts a long time, making it a smart investment over the long haul.

Comfort and freedom: period swimwear lets you swim without constraints during your period. No more irritating, uncomfortable tampons!

Maximum discretion: Looks just like a regular swimsuit, ensuring invisible protection at the pool or the beach.

Leak-proof technology: Triple layer (absorbent, wicking and waterproof) to prevent leaks and handle changes in menstrual flow.

Users praise the reliability of these durable creations. Many highlight the comfort and security during immersion, with optimal discretion.

Compatibility with different water activities

The period swimsuit adapts to all aquatic environments. Whether in the pool, sea, or lake, the protection remains effective for light to medium flows. Some use it for surf lessons or canoeing and canyoning outings.

For water sports, choose a model suited to your activity. A good fit and the right size ensure comfort and safety.

Reviews and feedback on our Laura period bikini bottom:


  • "Swimsuit exactly as described, I was able to fully enjoy swimming 🥰"  

  • "Super stylish, comfy, and effective swimsuit bottom! It saved my vacation because, of course, my period started the day we left. Swimming and sunbathing without stress. At 40, it’s the first time I’ve had such a great vacation while on my period, thanks to these XXL swim bottoms. So thank you!"

  • "Happy with this purchase! Swimsuit exactly as described. Tested at the end of my period and no issues!"

  • "I approve this product! I went to Majorca this summer with my menstrual bikini and I’m really happy with it! I was a bit anxious about wearing it because it was really my first time and everything went very well, no leaks at all! I recommend it."

💧 Louloucup menstrual swimwear styles

The one-piece swimsuit: elegance and maximum protection

Discover Noa, Louloucup’s one-piece menstrual swimsuit. Its triple-layer technology offers reliable protection and absolute comfort while swimming.

The one-piece period swimsuit model perfectly meets users’ expectations with its flattering cut and timeless black color. It absorbs the equivalent of 2 regular tampons.

Menstrual bikini bottoms: flexibility and discretion

The period bikini bottom suits light to medium flows. It pairs with your favorite tops (swim bralettes) for a personalized look without compromising on security. Louloucup offers several bikini bottoms in various sizes, from XS to XXL. Classic, timeless, or more original with lacing details—you have several styles to choose from.

The teen collection: comfort and confidence

The Emma shaping shorty and Zoé shaping brief are to die for!

Young girls will find their match in a collection designed for their body shapes with suitable cuts and sizes. The black color reassures with its discretion and timeless elegance.

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💧 How to choose the ideal period swimsuit

Finding the right size for optimal protection

To choose your period swimsuit size, follow the brand’s sizing guide. Precise measurements ensure a perfect fit, essential to prevent leaks and fully enjoy the water.


A good fit is essential for the product to work well. Properly placed elastics and the right lining prevent the bikini from shifting in the water, ensuring constant protection while you swim. At Louloucup, you’ll find our size guide on every product page.

Combining a cup and swimsuit for heavy flows

Assess your flow and adapt your protection accordingly. At the start or end of your period, a period swimsuit alone is enough. However, if you have heavy bleeding, a single period bikini likely won’t be sufficient.


Add a menstrual cup to your period routine to prevent leaks and avoid any mishaps. The menstrual cup is truly the most effective and eco-friendly sanitary protection for managing heavy or very heavy periods. It’s also THE perfect solution for swimming. It’s no wonder swimmers love the cup so much. The swimsuit + cup combo is often recommended for those with heavier flows.

And for when you’re out of the water, don’t forget our period panties for heavy to very heavy flow! They’re perfect for intense menstrual flow (copper IUD, lochia, light incontinence) with an absorbency equivalent to 5 tampons. 

All the benefits of the Juliette period bikini bottom


  • From XS to 2XL.
  • Inspired by the Naomi medium-flow menstrual panties. 🤩
  • Beautiful, sexy and elegant lacing on the hips.
  • Solid black color.
  • As pleasant to wear as it is reliable.
  • Mismatched, fun look.
  • The protection is ultra discreet and undetectable.
  • Absorbent zone holds menstrual flow without swelling.
  • May be suitable for a light to medium flow.
  • An excellent zero‑waste alternative to tampons for swimming.
  • Washable and reusable.


💧 Care and durability of period swimwear

Washing your period swimsuit: step-by-step

  • Rinse your protection in clear water after each swim to preserve its absorbent properties. Gently squeeze to protect the technical qualities of the period-proof fabric.

  • Just like with standard period underwear, then wash your menstrual swimsuit at a maximum of 30°C in a laundry bag. Don’t use fabric softener or harsh products, which would reduce the swimsuit’s effectiveness.

  • Air dry without using a tumble dryer. This care preserves the leak-proof barrier and extends the garment’s lifespan.

Don’t hesitate to check the Care tips section of our blog for all the essential tricks to wash, care for, and deep-clean your washable period products (panties, bikinis, cups), remove stains, fight bad odors, etc. In short, all the right habits to keep your period swimwear in great shape for a long time! 

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Durability of menstrual swimwear: a smart investment

A well‑cared‑for piece (properly washed, dried and stored) will last for several seasons. Resistant to chlorinated water, salt water and even the sun’s UV rays, it’s a smart, budget‑friendly purchase that pays off over time. It really is a clever buy compared with tampons that end up in the bin after a single use!

Menstrual swimwear and caring for the environment

By replacing disposable products, the period swimsuit reduces waste. Every cycle without tampons contributes to this eco-friendly effort. Durable fabrics and eco-designed processes reduce environmental impact. The period swimsuit is part of responsible period management. Regular reuse strengthens its positive environmental impact.

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💧 In short: the period swimsuit, your best friend this summer

Louloucup menstrual swimsuits offer an innovative, reliable, eco-friendly, and cost-effective solution for swimming without leaks or stress, thanks to their absorbent technology and comfortable, tailored fit.


By choosing a **period swimsuit** instead of tampons, you’re using protection that’s ideal for you, your health, and the planet.


Create your sliding-scale custom bundle now: 

  • Mix and match styles, sizes, collections and absorbencies (you’re completely free).
  • Pick your favorite products and pop them into your cart, 
  • Their price drops automatically—you don’t have to do anything (no subscription, no code to enter, nothing!)
  • A period product at €28.90 drops to €22.90 when you add 5 items to your cart! That’s the sliding-scale bundle—and it’s really great news for you and your wallet 😉
  • Don’t forget to use the current promo code, which can be combined with the bundle offer. 
  • No outrageous shipping fees here! At Louloucup, shipping is free in France and across Europe! 

So go for it! Put together your ideal period kit for this summer! Add one bikini, one cup, and three panties with different absorbency levels (to handle every situation). Each product comes to €22.80 instead of €28.90. Your total is €114.16, saving you €30.34 on your order (that’s €6.07 off each product)! 

A few ideas to top up your custom bundle!

FAQ: the period swimsuit

Menstrual swimsuit: is it effective for all flow levels?

Menstrual swimwear is effective for light to medium flow, ideal at the beginning or end of your period, during pregnancy for light discharge, or if your periods are irregular. For heavy flow, it’s best used together with a menstrual cup or tampon.


Their effectiveness relies on **technical fabrics**: an absorbent layer for comfort, a membrane to hold the flow, and a waterproof fabric to prevent leaks. They offer a discreet, comfortable alternative to traditional protection.

Can you wear a period swimsuit outside of swimming?

Yes, you can absolutely wear a period swimsuit out of the water. They’re designed to be comfortable, effective and stylish, suitable for various situations, whether at the beach, the pool or even under everyday clothes. They can be worn at any time, during your period or not, and are suitable for different flow levels.


These swimsuits contain invisible layers that absorb, lock in and prevent leaks. While similar to period panties, menstrual swimsuits are specially designed to withstand swimming thanks to their waterproof layer.

Menstrual swimwear: what are Louloucup’s three main advantages?

Louloucup offers menstrual swimsuits with a size guide based on hip measurement, from 84–86 cm (XS/size 34) to 109–113 cm (2XL/size 44).


All Louloucup swimsuits (bottoms and one-pieces) are available in several sizes (from XXS to 2XL). In plain black, they pair perfectly with colorful bikini tops and pareos.

Can you swim on your period without a tampon?

Yes, in 2026 you can absolutely go swimming on your period without using tampons. You have several options: free bleeding, a period swimsuit, a menstrual cup, or a menstrual disc. 

Is menstrual swimwear noticeable?

No, menstrual swimwear is completely discreet and looks just like a regular swimsuit in every way. 

Do you need extra protection?

Yes, but only if your flow is very heavy. In that case, we recommend wearing an additional internal protection of your choice (tampon, cup, disc, sponge) along with your menstrual swimsuit.

How long can you wear a period swimsuit?

How long you can wear it will depend on your personal comfort and how heavy your flow is. If your period is light, you can wear a Louloucup menstrual swimsuit for 4 hours without any problem. It has an absorption capacity equivalent to 2 tampons. It’s best to test it at home if you can.

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Camille

I’ve been writing for Louloucup for several years now, and I love chatting about everything from period panties to grandma’s remedies for easing period pain! Every week I share my favorites and inspirations with one goal in mind: finally experiencing calm, stress-free periods! 🩷

Learn more

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