Classic Bikini

holds OVER 4 tampons' worth

Our bestselling Bikini offers full coverage and protection, keeping you fresh 'n' dry when you need it most. 


Bikini features a soft lace trim that keeps your undies looking so cute, you might even forget you're on your period!


Our bestselling Bikini offers full coverage and protection, keeping you fresh and dry always


Bikini features a soft lace trim that keeps your underwear looking so cute, you might even forget you're on your period!

Our bestselling Bikini offers full coverage and protection, keeping you fresh and dry all the time. 


Bikini features a soft lace trim that keeps your undies looking so cute, you might even forget you're on your period! 

  • Wear For Up To 12 Hours 
  • Holds Up To 25ml, Or 4-5 Tampons' Worth 
  • For Periods, Leaks & Incontinence 
  • For Day & Night

Bikini - Heavy Absorbency
£27.95

PRODUCT INFO

Holds 4-5 tampons' worth, or 20-25ml of blood.

Wear alone for up to 12 hours.


Fabric

Interior: 50% Modal 50% Organic Cotton, Exterior: 82% Nylon 18% Lycra, Trim: 100% Polyester

CARE INFO

RINSE

Give 'em a quick rinse 🚿

WASH

Chuck 'em in a mesh laundry bag before popping them into the machine on a cold wash 👌🏽

DRY

Hang to dry outside or inside! ✌🏿


PS: Don't use bleach or fabric softener ⚠️

Customer Reviews

Based on 78 reviews
85%
(66)
12%
(9)
4%
(3)
0%
(0)
0%
(0)
M
M.M.
Flow: Moderate
Products used: FLUX Undies, obvs!, Disposable pads, Cloth pads, Menstrual cup
Fabulous!

These are wonderful! The fabric is soft and the fit is great--not too tight around the legs, but still snug, good coverage for those of us who have a bit more in the back. I have been impressed with how much they hold and highly recommend them. They will leave panty lines obviously, so you do have to pick the right clothing to go with them. As others have said, even after washing in a machine, they take two days to dry, so plan accordingly!

E
E.
Flow: Moderate
Products used: FLUX Undies, obvs!, Disposable pads
Really happy with purchase

Really happy with the Flux classic bikini. I find it really comfortable but glad I sized up (I'm usually a 10 but went for a 12). The seam does dig in a bit but can see why they make it that way to stop leaking. Overall, I am happy and would definitely purchase again.

K
K.
Flow: Moderate
Products used: FLUX Undies, obvs!, Disposable pads

Such a nice product. Crazy comfy and feels so soft! Love that it uses sustainable sources and actually supports the betterment of the planet. Wish the US had a store so I wouldn’t have to order internationally.

D
D.
Flow: Heavy
Products used: FLUX Undies, obvs!, Disposable pads
Not the typical period pants

So far no leaks and very comfortable. I have a XS and a XXS and both fit very comfortably. XS for those bloated days and XXS for the other days. These aren't as snug fitting as the boy shorts and by that I mean they still fit where they are needed but as the waist band is lacey rather than thick elastic they feel less restrictive and therefore less snug at the top. They do still do their job though.
I do have one issue of not being able to tell when they are fully dry when freshly washed. They hold a lot of moisture so take longer than normal pants to dryand you have to flip them over a few times when on the drying rack to ensure both inside and out is dry but they have a slightly cold feeling to them that can sometimes feel wet, but it's just cold. This is across all the flux undies I have not just this style.

R
R.S.
Flow: Super Heavy, Heavy
Products used: Menstrual cup
Wonderful! If a little uncomfortable...

I received them half-way through my period so I have yet to trial them at the height of my endometriosis, but I was really happy the result. They fit awkwardly across my back-side and gape a little, but after an hour or so of wearing them I didn't notice it too much. They're easy to clean and there was no smell!


FLUX Undies are your complete replacement for pads and tampons and can be worn alone for up to 12 hours.

Our unique built-in tech is moisture wicking, absorbent, and leak-proof, keeping you covered day 'n' night. 

Bikini offers full coverage with no bulk, and the soft lace waistband keeps you comfy in style.

- Wear all night, or for up to 12 hours during the day
- Holds 20-25ml, or four tampons' worth 
- Use FLUX for periods, leaks, post-partum, & incontinence!
- Wear them to school, work, exercise, or simply just to feel comfy on lazy days. 

Find out more on how our undies work.

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