NEW!

Essential Hipster

£17.95
Essential Hipster - Moderate Flow

flow: moderate

holds 2-3 regular tampons' worth / 15ml

The all-new FLUX Essentials™ line of period pants brings you comfortable cotton underwear with our signature built-in tech that absorbs up to 2-3 tampons' worth.


This new range uses excess left-over fabric which allows us to bring you a more affordable product whilst using fabric that would have otherwise gone to waste. One Essential Hipster replaces 200+ single-use disposables, making it a sustainable win-win.


Our mission is to help as many people as possible make the switch to sustainable period care, and our new Essential range makes our undies even more accessible to those wanting to make the switch.   

  • Classic, comfortable cotton
  • Wear all night on a super heavy flow
  • Holds 2-3 tampons' worth or 15ml
  • For periods, leaks & incontinence 
  • Protective layer from front to back
  • OEKO-Tex certified materials

NEW!

Essential Hipster

flow: moderate

holds 2-3 tampons' worth / 15ml

£17.95

The all-new FLUX Essentials™ line of period pants brings you comfortable cotton underwear with our signature built-in tech that absorbs up to 2-3 tampons' worth.


This new range uses excess left-over fabric which allows us to bring you a more affordable product whilst using fabric that would have otherwise gone to waste. One Essential Hipster replaces 200+ single-use disposables, making it a sustainable win-win.


Our mission is to help as many people as possible make the switch to sustainable period care, and our new Essential range makes our undies even more accessible to those wanting to make the switch.   

  • Classic, comfortable cotton 
  • OEKO-Tex certified & BCI Cotton
  • Wear for up to 8 hours on moderate flow
  • Holds 2-3 tampons' worth or 15ml
  • For periods, leaks & incontinence 
  • Protective layer from front to back

Style + fit

Made with quick drying super-soft cotton, bringing you next level comfort. 

Fabric + care

body: 95% cotton 5% elastane 

gusset: 100% cotton, breathable PUL


care: quick rinse 🚿40 degree wash 👌🏽 hang to dry ✌🏿 no bleach or fabric softener ⚠️

Product details
  • Moderate absorbency - holds up to 2-3 tampons' worth for up to 8 hours 
  • Super-soft and breathable gusset, with our reliable leak-proof technology
  • Soft and comfortable BCI approved cotton
  • OEKO-Tex certified materials - safe for your skin

Sustainably sourced

Fast + free UK shipping

Ethically manufactured

We give to girls in need

Better for you. Better for the planet.

*comparison after 3 years use

FLUX Essentials™ Period Pants

Disposables


I use 4 pairs


I wash them after use


I generate 0.2kg of waste

I use 500+ disposables


I throw them after use


I generate 4.5kg of waste

Customer Reviews

Based on 9 reviews
89%
(8)
11%
(1)
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(0)
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(0)
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(0)
Z
Z.
Flow: Heavy, Moderate
Products used: FLUX Undies, obvs!
Super comfy love them!

Such a shame these weren't around when I was younger i only wear these now really comfy and i dont have to worry about leaks or when i exercise they're perfect! Easy to wash and much better for the environment.

E
E.C.
Flow: Heavy, Moderate, Light
Products used: FLUX Undies, obvs!, Tampons, Cloth pads
The Best Period Underwear I have Tried!!!

I have many pairs of Flux underwear now, and absolutely love them. Not only do they absorb great, they are also super comfortable to wear (I even bought a few light flow ones to wear as everyday underwear). They also work great at night. No more concerns about leaking. I’ve tried a couple other brands of period underwear, but they never felt comfortable.
When someone asks about period underwear, I don’t hesitate to say get Flux! Even my daughter, who has just started her period, loves these.

N
N.
Flow: Heavy, Moderate, Light
Products used: FLUX Undies, obvs!, Disposable pads
Can't love these enough!

The fact that I m no longer contributing to the landfill or using the plastic aside... these are so much more comfortable than pads or tampons. I personally notice absolutely zero odor? (Which was new and a revelation!!) I also feel more secure wearing these? I have only had issues one day with slight leakage, I'm peri-menapuasal so very inconsistent menstrual cycles. Thank you for your products!!

S
S.
Flow: Moderate, Light
Products used: FLUX Undies, obvs!, Disposable pads
Love them

They are super comfortable. I feel cleaner. I wish I had these in my teens they are so convenient. I feel much better about not using disposable pads contributing to waste, much better for the environment.

  • How They Work
  • Money-Back Guarantee
  • Find Your Size
  • FAQ's

Moisture-wicking

Soft material wicks moisture and dries fast

Anti-microbial

Prevents bacteria building up and keeps smells away

Super absorbent

Absorbs liquid without feeling bulky or heavy

Leak-proof

Breathable layer prevents leaks and stains

Moisture-wicking

Soft material draws moisture away and dries fast

Anti-microbial

Prevents bacteria building up and keeps smells away

Super absorbent

Absorbs moisture and liquid without feeling heavy or bulky

Leak-proof

Breathable layer prevents leaks and stains all day

try our period-proof undies risk-free

if you're not period-ing better within 60 days, we'll give you your money back. no questions asked.

  • XXS
  • XS
  • S
  • M
  • L
  • XL
  • 2XL
  • 3XL
  • 4XL

size XXS

UK 4/6   US 0/2   EU 32/34

waist 60-63cm

hips 83-86cm

size XS

UK 8   US 6   EU 36

waist 64-67cm

hips 87-91cm

size S

UK 10   US 6   EU 38

waist 68-72cm

hips 92-96cm

size M

UK 12   US 8  EU 40

waist 73-76cm

hips 97-101cm

size L

UK 14   US 10   EU 42

waist 77-81cm

hips 102-106cm

size XL

UK 16/18   US 12/14   EU 44/46

waist 82-90cm

hips 108-116cm

size 2XL

UK 20/22   US 16/18   EU 48/50

waist 91-101cm

hips 117-127cm

size 3XL

UK 24/26   US 20/22   EU 52/54

waist 102-112cm

hips 128-138cm

size 4XL

UK 28/30   US 24/26   EU 54/56

waist 113-123cm

hips 139-149cm

what is your return policy?

We offer free returns and exchanges within 60 days of purchase, no questions asked! Just visit our Return & Exchange Centre to get started.

how long can i wear them?

If cared for properly, our undies are likely to have a maximum tech performance of approximately 3 years. This means washing them on a 30-40 degree wash with the rest of your delicates, never using bleach or fabric softener, and hang drying! In terms of length of wear, we measure our undies by absorbency with our highest absorbency styles holding 4 tampons worth of fluid. For some customers, that means wearing them the whole day and for others that may mean carrying an extra pair of FLUX Undies as a backup. 

how do they work?

FLUX Undies are underwear that absorbs your period. Every pair is made with technology that absorbs your flow, wicks moisture, controls odour, and prevents leaks — leaving you fresh and dry. Take a look at our How it Works page to learn more.

how do i find the right size?

We recommend following the hip measurement, as most of our styles sit on the hips. Be sure to measure your hips at their widest point to find the most accurate size for you! In case you don't have a tape measure, you can use the size you usually are most comfortable with for your underwear. We recommend the undies fit snuggly, but not so tight that it's uncomfortable. For reference, you can check out our size chart above.

A style to suit you

Meet our other styles

Boyshort

£27.95

flow: heavy

Hi-Waist

£28.95

flow: heavy

Classic Bikini

£27.95

flow: heavy