High Waist - Heavy Flow
High Waist - Heavy Flow
High Waist - Heavy Flow
High Waist - Heavy Flow
High Waist - Heavy Flow
High Waist - Heavy Flow
High Waist - Heavy Flow

High Waist - Heavy Flow

Regular price £28.95
/
Shipping calculated at checkout.

Say hi to our period proof tummy-hugging Hi-Waist! These leak-proof High Waisted period panties promise to give keep you comfortable and supported during your period, perfect for those bloated days. 

Made with super soft and sustainable Micro-Modal fabric on the inside, silky smooth nylon outside, and chic mesh panels for added style. The super absorbent gusset means they feel like normal undies, but keep you fresh and dry, day and night.

  • For Periods, Leaks and Incontinence
  • Holds Four Tampons' Worth / 20-25ml
  • Wear For Up To 12 Hours Leak-Free
  • Soft, Stretchy and Comfortable
  • Lightweight and Quick-drying
  • OEKO-Tex Certified Materials
  • Free From Toxins, Chemicals and PFAS/PFOA

Materials: Body95% Nylon 5% Elastane Gusset: Absorbent Blend, Breathable PUL Packaging: 100% Recycled and Recyclable Cardboard

🍃 Bleed Green: Each pair of our period pants replace 200+ disposables from going to landfill, reducing your waste by 99.5%

🤝 Giving Back: For every purchase, we give back to someone in need. Find out more about our #ByYouForThem giving back scheme here

We offer free shipping on all UK orders and free tracked shipping on International orders over £75.
For same-day dispatch and next day delivery, please place your order before 1pm.
All orders are dispatched from our UK warehouse using trusted couriers such as Royal Mail, DHL and DPD. 
 

Delivery options

UK

DPD Next Day Delivery Service 

Next day service, shipped by DPD tracked, £6.95

Royal Mail 1st Class Delivery Service 

1-2 days, shipped by Royal Mail tracked, £4.95

FREE Standard Shipping Service 

2-3 days, shipped by Royal Mail untracked

 

EU

*Free standard shipping is offered on all EU orders above £75 

Express Tracked Shipping Service 

1-2 days, tracked and signed, £14.95

Tracked Shipping Service under £75

3-5 days, tracked, £9.95

FREE Tracked Shipping Service under £75

3-5 days, tracked

 

USA & Canada

*Free standard shipping is offered on all International orders above £75

Express Tracked Shipping Service 

1-3 days, tracked and signed, £19.95

Tracked Shipping Service for orders under £75

5-7 days, tracked, £11.95

FREE Tracked Shipping Service for orders over £75

5-7 days, tracked

 

Rest of world

*Free standard shipping is offered on all International orders above £75

Express Tracked Shipping Service 

1-4 days, tracked and signed, £19.95

Tracked Shipping Service for orders under £75

5-7 days, tracked, £14.95

FREE Tracked Shipping Service for orders over £75

5-7 days, tracked

Think our period pants sound too good to be true? Take them on a risk-free trial for 60 days!

If our undies don't work as promised, let us know within 60 days and we'll refund you, no questions asked. The 60-day risk free trial applies to one worn pair of undies only. Refunds will be paid to the original payment method that was used to place the order.
🚿 Rinse after use.
🧽 Machine wash on 30-40 degrees.
 🍃 Hang to dry or dry indoors on a radiator.
⚠️ Do not use fabric softener or bleach. No tumble drying.
And that's it! Your FLUX Undies are ready to wear again!

Our Period Pants Are:

Sustainably Manufactured

We only use eco-friendly materials that are sustainably manufactured

Vegan and Cruelty-Free

Made from natural materials and never with animal materials or testing

Free From Nasties

Certified safe for skin and free from toxins, chemicals and fragrances.

60-Day Money Back Guarantee
How They Work

Our period pants absorb up to 5 tampons' worth of liquid, yet they look and feel just like regular undies.

Our built-in tech works like this:

1. Top layer wicks moisture away from the surface quickly, to keep you dry

2. Our middle layers absorb your blood and lock in your flow

3. The bottom layer pushes liquid back up and keeps you leak-free

It's simple. Just wear, wash and reuse.

Blood, Sweat, Whatever.

Three layers of fabric absorbing liquid showing how period pants work

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Customer Reviews

Based on 93 reviews
77%
(72)
15%
(14)
8%
(7)
0%
(0)
0%
(0)
A
Anonymous (Walthamstow, GB)
Flow: Heavy, Moderate
Products used: FLUX Undies, obvs!

Never going back to pads and tampons, these period pants are the best.

S
Sma (Ashburn, US)
Flow: Super Heavy
Products used: FLUX Undies, obvs!, Tampons
Awesome

The cut is very flattering, and the absorption is optimal! I absolutely love them for when the flow is medium.

E
Emel Zorlu (Edinburgh, GB)
Flow: Heavy
Products used: FLUX Undies, obvs!, Cloth pads
I look forward to my period now!

These knickers are life changing - they’re so comfy and they wash really well. Much better than reusable pads I’ve had - you just stick them on and go about life. Also they look cute.

C
Catherine Rees (Edmonton, GB)
Flow: Moderate
Products used: FLUX Undies, obvs!
Amazing!

So good!

K
Kendra S (Grant, US)
Flow: Moderate
Products used: FLUX Undies, obvs!
Awesome

I love mine. They are the only things I have to wear. I got several pairs and they are the best.

C
Claire H (Gillingham, GB)
Flow: Heavy
Products used: FLUX Undies, obvs!, Tampons
Great buy

These were my first attempt at period pants and I was super happy with them. Used them on my heaviest flow day, without any additional help (tampon) and I was fine throughout the day, probably 6-7h straight. Now looking to find the equivalent for nightime as was let down by my other pair of Heavy Flow Flux undies....