Essential Brief - Heavy Flow
Essential Brief - Heavy Flow
Essential Brief - Heavy Flow
Essential Brief - Heavy Flow

Essential Brief - Heavy Flow

Regular price £19.95
/
Tax included. Shipping calculated at checkout.

FLUX Essentials™ Heavy Flow period pants look and feel like regular underwear but have the power to absorb your period and prevent leaks. This comfortable cotton underwear is quick-drying and super soft, bringing you next level comfort. 

The all-new FLUX Essentials™ line of period pants brings you comfortable cotton underwear with our signature built-in tech that absorbs up to 4 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 Brief replaces at least 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.   

  • For Periods, Leaks and Incontinence
  • Holds 4 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% Cotton 5% Elastane Gusset: 100% Cotton, 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 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. 

Christmas 2021 deliveries

UK

DPD Next Day Delivery Service 

Next day service, order by 12pm 23rd December, £6.95

Royal Mail 1st Class Delivery Service 

1-2 days, order by 12pm 22nd December, £4.95

FREE Standard Shipping Service 

2 days, order by 12pm 22nd December, FREE

 

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 £50 

Express Tracked Shipping Service 

1-2 days, tracked and signed, £14.95

Tracked Shipping Service

3-5 days, tracked, £9.95

Standard Shipping Service

3-5 days, untracked, £4.95 (or free on orders above £50)

 

USA & Canada

*Free standard shipping is offered on all International orders above £100

Express Tracked Shipping Service 

1-3 days, tracked and signed, £19.95

Tracked Shipping Service

5-7 days, tracked, £11.95

Standard Shipping Service

5-7 days, untracked, £8.95 (or free on orders above £100)

 

Rest of world

*Free standard shipping is offered on all International orders above £150

 Express Tracked Shipping Service 

1-4 days, tracked and signed, £19.95

Tracked Shipping Service

5-7 days, tracked, £14.95

Standard Shipping Service

5-7 days, untracked, £8.95 (or free on orders above £150)

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 12 reviews
83%
(10)
17%
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A
Anna Robinspn (Newton Abbot, GB)
Flow: Heavy
Products used: FLUX Undies, obvs!, Tampons, Disposable pads
They really work

I got these to see if they actually did work and they did!

R
Rebecca (Elgin, GB)
Flow: Heavy, Moderate
Products used: FLUX Undies, obvs!, Cloth pads
Game changer

This is the second time buying as I loved my first set. It makes life so much easier during my period and I prefer wearing them to a pad.

D
DONNA (Coventry, GB)
Flow: Heavy
Products used: FLUX Undies, obvs!, Tampons
Game changer

These are so comfy and really great quality. Do exactly what they’re intended for aswell. Just about to purchase more with my Christmas money 😍

K
Katja R. (Vestmanna, FO)
Flow: Heavy
Products used: FLUX Undies, obvs!
Fantastic

I love my undies! I feel dry and comfortable, and it's not a smelly business.
They take all the flow, don't need extra protection.
Very comfortable to wear, not to hot.

F
Florentina Parvu-Mateescu (Wanstead, GB)
Flow: Heavy
Products used: FLUX Undies, obvs!
Nice cotton undies

They do what they are meant to. Really thankful for this. They are really great compared to a disposable pad!
But as in every product there is a "but". The side sewing is quite rough which make it hurt a bit. It feels way better than a standard disposable pad but the side sewing is nowhere near ideal. Sorry but my thigh is not of steel ( :) )and I can feel the knots and sewing.
If you ask if I would go back to disposable pads...certainly not! But some work needs to be done to make them more comfortable.

Thank you very much.

M
Maria R (Frankfurt am Main, DE)
Flow: Moderate
Products used: FLUX Undies, obvs!, Menstrual cup

I didn't love the shape/look of the pants when they arrived, but once I tried them on they felt very comfortable. Compared to other menstrual undies I own, these are more comfortable and I have the feeling the material is lighter and breathable. They don't feel as hot as others. Easily washable, no stains and no bad odor.
During the day I do not dare to wear menstrual pants alone, I always use them together with a menstrual cup. I use nothing but the Flux pants at night or on the last few days when the flow is lighter. So far I haven't had any leakage problems.
One important thing if you are buying from outside the UK: I had to pay customs taxes to pick them up at the post office. After paying that, the total cost is not so attractive compared to other brands.