fluxies Swim Bikini

Moderate Absorbency

£21.00 GBP
Free UK shipping!

Our leakproof Swim Bikini is the perfect swimming protection for periods, whether swimming in the sea, pool, or simply chilling poolside. Made with the same reliable built-in tech used across our period underwear range, so you can feel confident that you’ll stay leak-free. Our outer material allows water to simply roll off, keeping you fresh and dry all day long, whether you’re going for a dip or simply laying poolside. Absorbs 2-3 tampons worth.

Fit's slightly snug and we recommend sizing up if you are in between sizes.

  • Soft, Stretchy and Comfortable
  • Lightweight and super quick-drying
  • OEKO-Tex Certified Materials

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®️.

We offer free shipping to all UK customers, regardless of order amount! Next day delivery is also available at checkout.

Orders placed before 12.30pm GMT will be dispatched the same working day. Working days are classed as Monday-Friday.

Ordering from somewhere else?

We offer free worldwide shipping on orders above £75 and express shipping options are available at checkout.


If you're unhappy with your purchase, we'll find a speedy solution for you. We offer returns and exchanges for 30 days, alongside our 60-day money back guarantee if our products don't work as promised (we're that confident!).

Comfort, uncompromised.

Tried and tested by over 150,000 people...

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breathable and super-soft

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reusable and washable

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natural odour-control

...here are their thoughts

We let our reviews speak for themselves.

4.98 average
11,003 reviews

These are soooo good. I took a trip to the sea the other day and they held up perfectly, I was a little nervous at first but I had literally no problems!


Hove, GB

Finally I found swimming panties that you can wear safely in water while with your period. I’m so happy about them that I want to buy another pair. Fantastic - it really works!!


Birmingham, GB

Honestly I’m just mad I didn’t get these sooner. So comfortable, so secure and so much better for the environment.


Etobicoke, CA

Never going back to pads again. Amazing product, takes all the hassle out of my period.


Brandon, GB

Absolutely would not use anything else now. Super comfy, no smell, feels just like I'm wearing normal panties.


Watford, GB

I am so impressed with these pants. Added protection on heavy days - I’m not terrified of leaking - love them


Liverpool, GB

Others have dug in, these are great and so so much more comfortable than disposable pads!


Newcastle, GB

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