Reliable Period Pants & Period Proof Underwear

shop now

how it works

Untitled_design_-_2026-05-02T110911.048.png

Screenshot_2026-05-02_at_11.22.17_AM.png

FLASH SALE

Up to 25% off Everything

This weekend only.

Shop sale →

FLASH SALE

Up to 25% off Everything

.This weekend only.

Shop sale →

Untitled_design_-_2026-05-02T113214.000.png

25% OFF ENDS SOON

FLASH SALE

NEW

fluxies Swimsuit

Moderate Absorbency

£39.00 £52.00

Close-up of woman wearing black seamless period pants highlighting the stretchy fabric

woman wearing one size stretch period pants

BESTSELLER

fluxies NuStretch™ Brief - Multi Size

Moderate to Heavy Absorbency

£17.00

Wearable Hot Water Bottle for Period Cramps - FLUX

Wearable Hot Water Bottle £15.00 £25.00

Sleep Short

Super Absorbency

£27.50

"I've tested these period pants on long haul flights, overnight, in the office and on my work from home days, and honestly? I couldn't rate them more highly."

I’m a huge convert. Yes, these period pants are leakproof, but also comfy, and dare I say – a bit sexy.

They're SO damn comfy. A dream to wear and leaving you leak-free for 10 hours, they're stretchy, lightweight and quick-drying.

Changed my nights completely. So comfy!

Rose

We let our reviews speak for themselves.

4.98 average
2,113 reviews

Soft and secure.

I bought these to try out after seeing an ad and now I’m obsessed. Feels like regular underwear but does so much more. Really comfortable and stay in place

Elle

Worth every penny!

Sara

Game changer

A game-changer. I used to wake up worried about stains but not anymore. So soft and do the job perfectly. Love them!

Mya

How do period pants work?

Our period underwear has a three-layer absorbent system. It keeps you comfortable and dry. Plus, it feels just like your everyday underwear.

how does it work?

What's your flow?

Shop by flow to get 100% leakproof protection.

Light
Moderate
Heavy

Shop Now → Shop Now → Shop Now →

Leakproof seamless period underwear, woman expressing joy.

Seamless Bikini Brief - color variant: Black

Seamless Bikini Brief - color variant: Dusty Rose

Seamless Bikini Brief - color variant: Beige

Seamless Bikini Brief

Light Absorbency

£18.50

A brown-skinned woman standing and looking directly at the camera with a content look, raising her hands in the air as if stretching. She is wearing black period pants with floral lace trim and a cropped bra.

Brunette woman smiling and waving, wearing black period pants with floral lace trim and a black bra. She looks cheerful and relaxed.

fluxies Classic Bikini

Light Absorbency

£16.80 £21.00

Classic Boyshort

Light Absorbency

£16.80 £21.00

High-waisted period pants, comfortable and absorbent, close-up.

Classic Hi-Waist

Light Absorbency

£17.60 £22.00

fluxies Swim Bikini

Moderate Absorbency

£15.75 £21.00

BESTSELLER

fluxies NuStretch™ Brief - Multi Size

Moderate to Heavy Absorbency

£17.00

Woman smiling and looking content while wearing black hipster style period pants with waistband

Essential Hipster

Moderate Absorbency

£15.00

Essential Brief

Moderate Absorbency

£15.00

Blonde woman standing confidently, wearing black period pants with lacey floral trim gazes directly at the camera.

Brunette woman smiling, waving her hands while wearing black period pants with lacey floral trim and a black bra. She appears joyful and engaged, with a relaxed stance.

fluxies Classic Bikini

Heavy Absorbency

£18.80 £23.50

Seamless Hi-Waist - color variant: Black

Seamless Hi-Waist - color variant: Midnight Blue

Seamless Hi-Waist - color variant: Beige

Seamless Hi-Waist

Heavy Absorbency

£18.00 £24.00

woman smiling wearing seamless period underwear

Woman smiling radiantly while wearing black seamless period underwear.

Seamless Bikini Brief - color variant: Black

Seamless Bikini Brief - color variant: Dusty Rose

Seamless Bikini Brief - color variant: Beige

Seamless Bikini Brief

Heavy Absorbency

£16.50 £22.00

Classic Hi-Waist

Heavy Absorbency

£19.20 £24.00

period-pants-statistics_93038086-41eb-44e6-b36e-7360dbc65da6.png

Planet-friendly, Leak Proof Protection

Ditch disposable pads and tampons and switch to reusable, leak proof period underwear.

One pair of fluxies period pants replaces up to 200 disposables. Together with our community, we've diverted millions of disposables from landfills.

Are you ready to make a positive impact?

shop fluxies