Classic Bikini - Heavy Flow
Bikini style lace period pants
Bikini style lace period pants
Bikini style lace period pants
Classic Bikini - Heavy Flow
Classic Bikini - Heavy Flow
Classic Bikini - Heavy Flow

Classic Bikini - Heavy Flow

Regular price £27.95
/
Tax included. Shipping calculated at checkout.

Our Classic best-selling Bikini period underwear combines style with function. Holding up to four tampons' worth, they are a dream to wear day and night and can be worn leak-free for up to 12 hours. 

  • 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% TENCEL Modal 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 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 171 reviews
84%
(144)
12%
(20)
4%
(7)
0%
(0)
0%
(0)
M
Maria R (Frankfurt am Main, DE)
Flow: Moderate
Products used: FLUX Undies, obvs!, Menstrual cup
The best! Holds heavy flow plus flattering shape

For me, the best of all Flux undies. Also the best of all menstual underwear I have. I has the quality as any other Flux for heavy flow but with a nicer look (in my opinion). I love the lace waistband. It feels as soft, comfortable, light and breathable as the rest Flux undies I've tried.
I use it with a menstrual cup during the day and alone at night and no leakage problem whatsoever so far.
FYI if you are buying from outside the UK: I had to pay customs taxes to pick them up at the post office.

R
Ruth Jones (Weybridge, GB)
Flow: Super Heavy
Products used: FLUX Undies, obvs!
my new faves

I wasn't sure if I'd get on with the fancy edging on the top of these pants but they are just as soft and comfy as the classic boy short style which is a bonus. They look pretty and work as they're meant to. I use the boy shorts and have several pairs and now love these as well. They absorb, no fuss or leaks amazing ..worth every penny.

Y
Yaël (Lambeth, GB)
Flow: Heavy
Products used: FLUX Undies, obvs!
Super light yet very absorbing

I feel like this model is lighter than the high waisted transparent one, which is a nice feel on the body. Tranquility of mind wearing this, perfect for 8hours in heavy days in my case.

C
Christina Bravo (Comporta, PT)
Flow: Super Heavy
Products used: FLUX Undies, obvs!, Tampons, Disposable pads
a whole new world

I am super happy to have changed to these panties. I have a very strong flux and used an average of 15/20 pantyliners of all sizes and forms during one period of 2/3 days. These have literally changed my life. Comfortable and even "sexy" they make me feel clean and healthy.

L
Lanka Bandara (Northwood, GB)
Flow: Super Heavy
Products used: FLUX Undies, obvs!
Fabulous and worth every penny

It took a few hours to get used to the whole concept but was great once I got past that stage. I bought two and so was able to wash and change into a new one every 8 hours. It worked really well. No leakage and managed to hold an impressive amount with ease.

N
N.Y (Belfast, GB)
Flow: Heavy
Products used: FLUX Undies, obvs!
Life changing!

Classic Bikini Heavy Flow do an amazing job! Love to wear them,Life changing!