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A period swimsuit? It’s not a myth!

Written by: Camille Raynaud

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Published on

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Time to read 10 min

Thanks to the leak-proof period swimsuit, you can now swim during your period! Say goodbye to uncomfortable tampons and impractical pads: the period swimsuit makes your weekends, vacations, or pool sessions with friends so much easier.


At the lake, river, surfing, the beach, or the pool, your period should never ruin your fun. You look forward to these vacations all year, so it would be a shame to let your period stop you from enjoying them.


Thanks to washable and reusable period protection, you can now feel confident and at ease throughout your cycle while using eco-friendly hygiene solutions. It’s all positive!


Curious about the period bikini? This period swim bottom is both absorbent and leakproof—a real game changer. Affordable, comfortable, absorbent, well-made, with lots of options and sizes, Louloucup has all the info on your new summer must-have!


So, which Louloucup style will you fall for? Juliette, Noa, Manon, or Laura! 😎💦🌸

I. Menstrual swimwear: a revolution for swimming during your period

💦 What exactly is a period swimsuit?

The period swimsuit—also called a menstrual swimsuit, menstrual bikini, or period swim panty—is an alternative to traditional period products for enjoying the beach or pool during your period.


Designed with multilayer technology, these special swim briefs absorb and lock in flow, preventing it from leaking into the water.

💦 How does a period swimsuit work?

The system is made up of several layers: one layer absorbs the blood, another holds it in, and a third prevents it from leaking out.


The first layer in contact with your skin absorbs, the second has a high capacity for holding flow without swelling or shifting, and the third, outer layer is waterproof. This last layer keeps water out.

A period swimsuit is ideal for managing, absorbing, and capturing light to medium menstrual flow for 4 to 6 hours. So far, no period swim bottoms can effectively contain a heavy or very heavy flow without risk of leaks.

Menstrual bikinis can be used in any aquatic situation. Whether you’re swimming in chlorinated pools or the ocean, they provide reliable protection. You can swim, have fun, do water aerobics, or enjoy the waves without worrying about leaks.

Louloucup recommends... the Juliette period swim bottom


  • Solid black with a small gold trim finish.

  • Ultra-thin and discreet, Lucie features flat seams so it stays invisible under clothing.

  • Ultra soft and very healthy, it’s made of 95% organic cotton.

  • Lucie absorbs the equivalent of 2 to 3 tampons. So it's a model suitable for medium flows.
  • Available from size XXS  (teen version, equivalent to a size 2) up to size XXL  (equivalent to a size 14).

  • Made in Portugal.

  • Price: starting at €22.90.

💦 No more tampons at the pool: freedom regained

Traditional period products can be a hassle at the pool or beach. Here are the main drawbacks:

  • ⛱️ Tampons are hard to insert outside and tough to change discreetly. Changing your tampon in a crowded beach bathroom isn’t easy—the space is cramped and not always clean. Plus, there’s sand.

  • 🦠 Risk of toxic shock syndrome. If you don’t change your tampon or leave it in too long, you increase your risk of TSS. Even though this infection is very rare, it is serious. So you need to take it very seriously and wear your tampon for a maximum of 4 to 6 hours.

  • 🩸 Pads can leak in the water. Disposable pads are really impractical at the pool or beach. Not only are they visible, but they’re not waterproof at all and swell up at the slightest hint of moisture! Instant diaper effect!

  • ♻️ Pollution from disposable menstrual products. Pads and tampons generate a huge amount of non-recyclable waste—there’s no denying it. It’s harmful to the planet and the oceans. Choosing reusable products (underwear, swimsuits, or cups) is an eco-friendly, responsible, and conscious choice, a real step to help the planet!
  • 😓 Physical and mental discomfort caused by a visible tampon string or the unpleasant feeling of a pad.

The period swimsuit transforms your swimming experience. No more stress. No more worrying about your period. No more embarrassment. You can fully enjoy the moment without fear of leaks, feeling totally confident. 



Period swimwear changes your relationship with your period. That time of the month is no longer as restrictive because you have the right tools to manage and control it.

culotte règles ado

"Very comfortable swimsuit, true to the photos and fits perfectly. The package was delivered on the date promised, which is great. Thank you so much." Virginie D. ordered the Juliette bikini bottom.

💦 Say goodbye to discomfort: swimming during your period is now easy

The taboo around periods is fading thanks to period swimwear. You no longer have to skip the beach or pool. Discreet technology lets you fully enjoy water activities: surfing, windsurfing, jet skiing, and more.


The period swimsuit adapts to all your outings. On a beach vacation, during swim class, or for an afternoon at the pool, it guarantees reliable protection. You no longer have to plan your days, vacations, or weekends around your period.

II. The unmatched benefits of period swimwear

😎 Comfort and safety: major advantages


The period bikini offers ideal comfort for swimming. You’ll almost forget you’re on your period, thanks to its soft lining and perfect fit. No irritation or discomfort during water activities.


Leak-proof technology guarantees maximum safety. The wicking liner quickly absorbs blood, while the 3D mesh locks it in. The waterproof layer stops any leaks, even in the water. Enjoy the pool or the beach with total confidence.


=> A comfortable and reliable choice.

culotte menstruelle ado

😎 Eco-friendly and cost-effective: the smart choice

Choosing a reusable period swim brief significantly reduces waste. You avoid throwing away thousands of tampons each year. It’s a sustainable solution that helps protect the planet while remaining practical. Just like period underwear, a well-cared-for swimsuit can last for years without any issues. It’s an ethical and sustainable choice.

Menstrual swimwear is also an economical choice. While the upfront cost may seem high, it’s truly an investment. Over several years, it actually costs less than disposable period products. You quickly make back your initial investment thanks to its long lifespan. And don’t forget, at Louloucup, our already low unit price can be brought down even further with our custom bundle. It’s simple—the more products you add to your cart, the lower the unit price for each item. You get amazing discounts. It’s automatic; you don’t have to do a thing. Three pairs of underwear, a swimsuit, a cup—mix and match any products, any size. Once you reach five products of your choice, you can save over €30! And that’s not even counting free shipping, potential promo codes, and sales you can take advantage of…


=> A smart choice for your budget and the environment.

😎 Discretion and style: stay elegant during your period

Swimwear lingerie comes in attractive styles. One-piece, bikini bottoms, high-waisted panties—treat yourself! Stay elegant without compromising on protection.

At Louloucup, you’ll find a beautiful range of menstrual swimsuits for teens and women. We’ve focused on classic black and created several styles so you can easily mix and match with your sarongs, beach dresses, and bikini tops. To our delight, washable menstrual protection is now an accessory—and it’s cool!


=> A fantastic and ultra-discreet choice.

Louloucup period swimwear 🤩

III. Different types of period swimwear to fit every need

🌸 One-piece, bikini, high-waisted: find your style

Period swimwear comes in various styles to suit all body types. You can choose between a one-piece, bikini, or high-waisted models depending on your aesthetic preferences and activity.

Teens can also enjoy the freedom of menstrual swimwear, with designs tailored to their body shape and specific needs. Each model offers a balance between protection and comfort.

A one-piece provides perfect support for swimming. It’s a bit shaping and will be appreciated by those who feel bloated during their period.

A one-piece swimsuit can also double as a bodysuit under shorts or a sarong. Super practical for vacations.

The bikini lets you mix and match tops and bottoms according to your preferences and style. This absorbent swim bottom is discreet and thin.

High-waisted styles shape your tummy and are a great fit for A-shaped bodies. They provide support and a secure, all-around protected feeling.

Styles with wide straps provide effective support for the bust.

Asymmetrical cuts add energy to V-shaped figures.

Our tips:


Pick your swimsuit based on your activity and body type. For swim class, go for a one-piece with a racerback. For the beach, a colorful bikini or high-waisted bottom combines comfort and style.

🌸 Options for light, medium, or heavy flow

Swimwear protection adapts to light and medium/normal flows. For heavier or very heavy flows, we recommend adding a menstrual cup to your swimsuit to prevent any accidental leaks.

Check out all our tips on the swimsuit + cup combo so you can enjoy a carefree vacation! This combination offers maximum security as well as peace of mind and confidence.

🌸 The Louloucup swimwear collection for everyone

Which Louloucup model will you fall for?

The Laura bikini bottom features a high waist in black with a lace-up back.

The Noa one-piece stands out with its flattering neckline and adjustable straps.

The Manon model in black is a basic that’s super practical.

The Juliette model is especially unique with its lacing on the hips.

These styles absorb the equivalent of two tampons, combining functionality and timeless style for every body type. You can also add to your cart and continue shopping with a cup:

The Loulou Turquoise cup, soft, in size small or medium,

the classic Loulou Rose cup in small or medium size.

Reminder: All these products with free shipping are available at a single price of €28.90, with discounts if you choose a custom pack or bundle.

IV. How to choose and properly use period swimwear

🏊🏼‍♀️ Find your perfect fit: sizing guide

A quick look at our size guide will help you choose the right size. We highly recommend checking it before finalizing your order. Measure your bust at its fullest point, your waist at its narrowest, and your hips at their widest.


Our tip:

For menstrual swimwear to be effective, it needs to fit well. A good fit ensures both effectiveness and comfort. The swimsuit should hug your curves without digging into your skin or being too tight. Make sure the leg elastics stay in place without squeezing. If you’re between two sizes, choose the smaller one to avoid leaks.


maillots règles

🏊🏼‍♀️ First use: practical tips

Wash your period swimwear before first use to activate absorption. Wear it like regular swimwear, making sure it fits well. Rinse after each swim and machine wash at 86°F (30°C) without fabric softener.



So yes, you got it right—the period swimsuit isn’t a myth, it really works.

Yes, you can swim while on your period without worrying about leaks.

Yes, you can sunbathe on your towel without worrying about staining it.

Yes, you can surf, play beach volleyball, be a mermaid on the beach, or go rafting during your period! 😜

The swimsuit can be worn alone or with a cup. It’s also especially great for teens who aren’t comfortable with cups or tampons, for anyone learning about free bleeding, or for those worried about toxic shock syndrome.

Menstrual swimwear FAQ

Can you pee while wearing period swimwear?

Some menstrual swimsuits are designed to absorb light urinary leaks, as well as periods and everyday discharge.

These swimsuits feature multi-layer protection: a layer of organic cotton, an absorbent layer of hemp fleece, and a waterproof PUL layer. They can be worn for up to six hours and can be paired with a menstrual cup if necessary. It’s important to rinse the swimsuit after use and wash it at a low temperature.

How long does a period swimsuit last?

The lifespan of menstrual swimwear is about 5 years, or even 5 to 7 years depending on the model. To make it last, it’s important to follow certain care tips.


It’s recommended to rinse it in cold water after each use and machine wash at a low temperature (no more than 30°C/86°F) with a gentle detergent. Air drying, away from direct heat, is best. Proper care helps preserve fabric quality and maintain its effectiveness.

Menstrual swimwear: how to manage odors and hygiene?

Menstrual swimsuits are made with natural antibacterial fabrics like bamboo fiber.


The first layer of fabric is breathable and quick-drying, allowing fluid to pass inside the swimsuit while keeping the surface feeling dry. The period swimwear allows blood to flow freely, reducing blood stagnation in the vagina and limiting bacterial growth.


Learn more

Want to swim and sunbathe without a second thought? 🤗