fluxies Swim Bikini
Moderate Absorbency
Enjoy your summer holiday without the stress. Our Swim Bikini is designed with the same reliable, triple-layer leak-proof tech as our best-selling underwear, so you can swim, lounge, and play, leak-free. Whether you're in the pool or hitting the beach, we've got you covered.
HOW IT WORKS
Our swimwear features an ultra-absorbent gusset, designed to hold up to 15ml of flow—that’s the equivalent of 3 tampons or 2 pads. Our chlorine-resistant, UV50+ recycled nylon fabric ensures you stay protected, dry, and secure.
DESIGNED FOR
Your go-to for swimming, water sports, and beach getaways. We’ve built this to handle moderate flows comfortably, making it the perfect choice for lighter days or as extra protection with your cup or tampon. It’s swimwear you can trust, in and out of the water.
THE FOUNDER'S NOTE
"I created this bikini because I was tired of sitting on the sidelines while my friends were swimming. I wanted something that looked like a regular bikini but actually worked. I wear this personally, and it’s been a total game-changer for my summers."
Fit Note: Our fabric is supportive and slightly snug. We recommend sizing up if you are in between sizes!
Our period-proof underwear combines cutting-edge technology with ultimate comfort. Here’s how it works:
Multi-Layer Protection: Our underwear features a unique multi-layer system designed to keep you dry and comfortable all day.
- Moisture-Wicking Layer: Quickly draws moisture away from your body to keep you feeling fresh.
- Absorbent Core: Locks in fluid, providing reliable protection against leaks.
- Leak-Resistant Barrier: Prevents any leaks, so you can move with confidence.
- Breathable Fabric: Ensures airflow to keep you cool and dry.
Machine wash max 40°C with mild detergent, hang to dry. No bleach. No tumble dry.
BODY:86% Recycled Nylon, 14% Elastane
GUSSET LINING:100% Polyester
GUSSET:100% Microfibre, Biodegradable TPU
Our underwear has no added PFAS, and has been successfully tested for harmful substances and certified according to STANDARD 100 by OEKO-TEX®️.
Learn more about how to care for period underwear.
UK Bound? Lucky You!
Enjoy free shipping on us, on all UK order over £30! Need it quick? Pick next day delivery at checkout.
Order before 12:00 pm GMT on a working day (that’s Monday to Friday), and we’ll send out your goodies on the same day. Talk about speedy service!
Returns Made Easy
Didn’t hit the jackpot with your purchase? No sweat! We’ve got your back with hassle-free returns and exchanges for 30 days. And if our products don’t live up to the hype (spoiler: they totally will!), we’ll refund you within 60 days*. Yep, we’re that confident! 🚚✨
* Try fluxies risk-free on your first order. If our undies don't work as promised, let us know within 60 days and we'll refund you. The 60-day risk-free trial applies to one worn pair of undies only.
Tried and tested by over 200,000 people worldwide
Breathable and super-soft
Experience ultimate comfort with our breathable, ultra-soft fabrics.
Reusable and washable
Wear, wash, and reuse for many years to come.
Natural all day odour-control
Stay fresh all day with our odour-neutralising fabrics.
Your questions, answered.
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Fluxies period swimwear is designed with innovative technology to provide discreet, reliable protection while you swim. Here’s how it works:
Multi-Layer Protection: Our swimwear features a multi-layer system that effectively absorbs menstrual flow and prevents leaks, even in the water.
- Moisture-Wicking Layer: Draws moisture away from your body, keeping you feeling dry.
- Absorbent Core: Holds menstrual flow securely without swelling in water.
- Leak-Resistant Barrier: Ensures no leaks, so you can swim confidently.
Every pair of fluxies underwear features our innovative built-in technology — a moisture-wicking top layer to keep you fresh & dry, an absorbent core layer to lock in the liquid, and an outer leak resistant barrier to prevent leaks. Learn more about how period underwear works.
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Yes, you can wear Fluxies period swimwear without any additional products. Our swimwear is designed to provide complete protection on its own, with an absorbent core and leak-resistant barrier that ensure you stay dry and confident while swimming. Enjoy worry-free water activities with Fluxies!
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You can wear fluxies period-absorbing swimwear for as long as your flow will allow. Every flow is different, and the type of absorbency you choose will affect how long you can wear your fluxies for.
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To find your perfect size, please refer to our detailed size chart on the product page. Measure your waist and hips, then match your measurements to our chart for the best fit.
If you're between sizes, we recommend sizing up for maximum comfort. Our customer service team is also available to assist you with any sizing questions!
