culotte de bain menstruelle

Period swim bottoms: the perfect summer solution!

Written by: Camille Raynaud

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Published on

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Time to read 9 min

Summer’s coming! Vacation, beach, pool, and relaxing should never be canceled, postponed, or delayed because of your period! Never!

Tired of using irritating tampons with questionable ingredients just to swim? Want to swim without worrying or fearing leaks?

Discover the period swimwear, a comfortable and eco-friendly alternative to traditional menstrual products. This women’s bikini or period swimsuit is a safe, sustainable, and budget-friendly alternative to disposable tampons. Let us tell you more about this must-have ally for all your future swims! 💦

I. Discover the menstrual swim bottom and how it works

👙 What is period swimwear?

A period swim bottom is a swimsuit bottom specifically designed to be worn during your period. Unlike regular period underwear, it's made for swimming thanks to its waterproof structure and built-in absorption system. It looks just like a regular swimsuit bottom, except it has an absorbent membrane sewn into the lining to catch menstrual flow. The period swim bottom features a discreet absorption system so you can enjoy the water worry-free during your period. Never heard of period swimwear? Check out the Louloucup range of period swimsuits and the Louloucup teen period swimwear collection! A gorgeous range of period swim lingerie that’s absorbent on the inside and waterproof on the outside.

Technical fabrics: absorption and leakproofing

Menstrual swimwear panties are made with innovative materials that absorb flow while staying waterproof in the water. They generally feature layered construction: a decorative outer fabric, an absorbent middle layer, and an inner leak-proof layer. This technology keeps you protected in any situation, even during long swims.


Menstrual bikinis combine technology and comfort with multiple functional layers. The first soft layer touches your skin and captures the flow, a middle layer absorbs and retains fluids, while a waterproof outer layer prevents leaks. This clever system lets you swim freely with no compromise on security.

A closer look at three Louloucup period swimwear styles 💦

II. The advantages of menstrual swimwear compared to traditional protection

Want to enjoy water activities without worrying about your period? Period swimwear is even more practical than tampons for swimming. No more hassle with frequent changes or the discomfort of removing a dry tampon after swimming.

Unlike tampons, which are often used for swimming during your period, menstrual swimwear offers an unmatched sense of security and comfort.


By choosing period swimwear, you’re making an ecological and economical choice for the long term. No more disposable products piling up with every cycle.


A reusable menstrual swim panty helps avoid the waste associated with disposable products. This reusable solution is part of a zero-waste approach. Less trash to throw away, fewer expenses each month. The initial investment pays off over the years, with a lower cost compared to repeated disposable purchases.

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III. Period swimwear: what type of flow is it for?

Flow type
Absorption capacity
Usage tips
Light
1 to 2 tablespoons
Perfect for the first days or light leaks. Choose a soft, lightweight organic cotton style.
Medium
3 to 5 tablespoons
Suitable for a regular flow. Many styles are available to handle this type of flow.
Heavy 6 to 10 tablespoons
Wear a menstrual swimsuit bottom and pair it with a menstrual cup to prevent any leaks.
Very heavy
+10 tablespoons
Same advice: you can wear period swim bottoms for style, along with a menstrual cup or pad to handle a very heavy flow.

How to combine it with other protection

For a heavy flow, the combination of a menstrual swim bikini + menstrual cup provides ideal double protection. This combo boosts protection while keeping you comfortable. The cup collects the main flow, while the bikini absorbs any leaks.

This way, you can enjoy a full day at the beach or pool, in saltwater or chlorinated water, on your towel or lounge chair, without being caught off guard, thanks to this simple and effective routine.

IV. How to Choose Your Ideal Period Swimwear

👙 Key criteria for making the right choice

Looking for the perfect period bikini? Several factors will help you choose for a worry-free summer. Absorbency, material, cut, and color should all be considered based on your body type and current preferences. Let us guide you!

Breathable, chlorine-resistant materials for maximum comfort in the water.

Absorption capacity suited to your flow (light, medium, or heavy) for optimal protection.

Ergonomic fit that hugs your body without irritating elastics for comfortable wear.

Certified leak-proof system ensures reliable protection against leaks at the pool or beach.

Compatible with other products like menstrual cups to boost effectiveness.

Simple, black, or solid color designs so you can easily pair them with your favorite swimsuit tops.

👙 The different models and styles available


Period swimwear comes in a range of styles to fit every body type. Classic, tanga, boyshort, or high-waisted, each cut offers unique comfort. In summer, go for modern styles that combine safety and elegance.


Create your perfect look by pairing your period swim bottoms with different tops. A triangle or bandeau top goes beautifully with a solid bottom. For a bold style, try contrasting a black bottom with a printed top. And why not mix up the fabrics for a coordinated set?

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👙 Find the perfect size for optimal comfort

The ideal size ensures comfort and effectiveness. Measure your hip circumference at its widest point. Compare your measurements to our size guide (available on every product page).

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V. The Laura swim bottom: period swimwear with no compromises

The Laura bikini bottom by Louloucup has it all! Black, high-waisted, stylish, sexy, absorbent, and soft—it’ll be your go-to for every outing this summer: at the pool with friends, at the beach on vacation, or canyoning with your crew. Your period won’t stop you from enjoying every moment!

Louloucup has combined its expertise in reusable menstrual protection with the technical innovation of the best absorbent fabrics for absolute comfort. And as always at Louloucup, Laura never compromises on price or quality.


This breathable bikini bottom offers long-lasting comfort at an affordable price, perfect for starting or expanding your collection of sustainable period protection. It's ideal for absorbing and containing a light to medium menstrual flow. For heavy flow, pair the Laura swimsuit with one of our cups: the Rose or the Turquoise.


Its elegant design (that lacing in the back! 🤩), high waist, supportive stretch, and reinforced leak-proof system make it perfect for sports and water activities—just a few reasons to fall in love with this beautiful product!


Available in sizes XS to XXL, the Laura women's bikini by Louloucup can of course be purchased as a bundle with other menstrual products from the brand!

"Finally, a unique swimsuit that isn’t too flashy. Just right. I wear it all the time. Great protection for periods, and I add a cup if needed. Fits perfectly, stays put in the water. Highly recommend." — Céline M.

Great opportunities await those who want to make a smart investment! The Louloucup custom bundle lets you order several models and get a reduced unit price for each one.


Don’t forget to check out current deals, sales, and promo codes (there are often some available!) And at Louloucup, you only pay for your period products—never for shipping! That really makes a difference for many people—shipping is always free at Louloucup.

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VI. Our bonus tips: use, care, and what to do in case of leaks?

🤔 How to properly use your period swimwear

Put on your menstrual swim brief just like a regular swimsuit, making sure the absorbent area is positioned correctly. Adjust the sides for a comfortable fit without being too tight. Enjoy the water with total confidence—no complicated steps required.


Bring a waterproof bag to discreetly store your used swimsuit bottom. Rinse it quickly with clear water before storing. Take a spare menstrual panty for when you’re out of the water so you can always stay dry. And there you go, you’re ready for a worry-free day at the beach or pool.

🧼 Care tips to extend its lifespan

After each swim, immediately rinse your absorbent swim bottom in clean water.
Wash it in the machine with cold water and a gentle detergent, without fabric softener. Let it air dry to preserve the technical materials.


Chlorine and salt can wear down the fibers over time. Rinse after use to keep them elastic. Avoid harsh products that damage absorbency. This super-comprehensive care guide explains how to preserve the technical fibers of your period swimsuits and, most importantly, how to make them last!

🩸 What to do if you experience leaks or discomfort

If you have a leak, keep calm and discreetly take off your swimsuit in a changing booth. Rinse off quickly with cool water and put on your backup period underwear.

If you’re experiencing repeated leaks, check your size and absorption level. A model that’s too small can be uncomfortable. Try different fits or pairings with a cup to find your ideal balance.


Want to enjoy summer without compromise? The period swim panty combines comfort, style, and reliable protection for carefree swimming. No more worries: choose a reusable solution that’s gentle on your body and the planet! 


Ready to make your beach or pool days even better with Louloucup?

FAQ: menstrual swimwear

What is a menstrual swimwear bottom?

A period swim bottom is a swimsuit bottom specially designed to be worn during your period. It features a discreet absorbent system, allowing you to enjoy the water worry-free.

Unlike regular swimwear, it offers reliable, comfortable protection so you can swim with peace of mind.

How does the absorbent technology in menstrual swimwear work?

These period bikinis combine technology and comfort with a multi-layer functional system. A soft top layer captures your flow, a middle layer absorbs and holds liquid, and a waterproof outer layer prevents leaks.

This clever system lets you swim freely without compromising your safety or comfort.

What are the benefits of period swimwear compared to traditional protection?

Menstrual swimwear is more practical and comfortable than tampons for swimming. It eliminates the hassle of frequent changes and the discomfort of a dry tampon after swimming.


By choosing menstrual swimwear, you’re making an eco-friendly and budget-conscious choice. Reusable, it helps you avoid waste and cut down on monthly expenses.

What types of flow is menstrual swimwear suitable for?

Period swimwear comes in different absorbency levels. They’re suitable for light to medium flows.


For a very heavy flow, it’s recommended to pair it with a menstrual cup for maximum protection.

How do you combine menstrual swimwear with other period products?

For a heavy flow, the combination of period swimwear and a menstrual cup offers enhanced protection. The menstrual cup collects the main flow, while the swimwear absorbs any leaks.


Bring backup period underwear for when you’re out of the water so you can stay dry. Take a waterproof bag to discreetly store used products and make the most of your day.

How to choose the right menstrual swimwear?

Several factors influence your choice: absorbency, material, cut, and color. Choose breathable, chlorine-resistant fabrics for maximum comfort.

Make sure you find the perfect fit by measuring your hip circumference and checking the brand’s size guide.

How do you care for your period swimwear?

After each swim, immediately rinse your underwear in clear water. Machine wash cold with a gentle detergent, and don’t use fabric softener.

Air dry it to preserve the technical materials. Rinse after use to maintain elasticity.

To learn more...

Ready to make the most of the pool this summer?