starter kit

For Light Flows

$9.99

Free US Shipping

(980+)

For Medium Flows

$9.99

Free US Shipping

(980+)

For Heavy Flows

$13.99

Free US Shipping

(980+)

Get the popular discs for the most comfortable period. No hidden fees. Pause, customize, or cancel anytime.

Why FLEX?

FLEX is for doing more.

  • Up to 12-hour wear, no frequent changes.

  • Mess-free period sex.

  • Sleep, exercise, swim, and more…

  • 60% less waste than tampons & pads.


FLEX is for peace of mind.

  • Reduces cramps and dryness.

  • Not linked to TSS.

  • Hypoallergenic and pH neutral.

  • FDA registered. BPA, phthalate free


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Read our glowing customer reviews

average rating 4.5 out of 5
Based on 1649 reviews
  • 5 Stars
    1251 Reviews
  • 4 Stars
    185 Reviews
  • 3 Stars
    85 Reviews
  • 2 Stars
    54 Reviews
  • 1 Star
    74 Reviews
88% of reviewers would recommend this product to a friend
1649 Reviews
Reviewed by Heather B.
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

Wasted my life with other products!!!!

I don't like tampons, never have never will. they hurt when taking them out, and honestly I could never find one that didn't leak. So I have been using pads for my entire life, since I was 9. (yeah I know that's young to get your period, FML) I have always been active, been playing sports my entire life, so obviously pads are not the best option, but it was the only one I had. But let's get serious, pads leak, you feel bulky and honestly gross throughout the day. So when I heard about FlexCup I was intrigued to say the least. So I took a chance and I bought it. LIFE CHANGING! I recommend it to almost every female I know!! It took a few hours to get used to it but I feel cleaner throughout the day, there is no odor and I can't even feel it! It has never leaked so I have been able to wear my regular underwear on my period!! I am able to sleep on my back, bend down, and workout without even worrying about leaking! I don't have to worry about changing my pad or if I leaked throughout the day! This has changed my life! I can't believe I had to endure years and years of ruining underwear, leaking through pants and being embarrassed while having my period!! Give it a try, it will change your life!

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Reviewed by Lani Mastny C.
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

Very comfortable

I've been using these for a while now, and love them. My only issue was the learning curve of insertion, which took longer than expected, but it's now all good.

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Reviewed by Jay
I recommend this product
Rated 5 out of 5
Review posted

Okay, but . . . WOW

As a 2006 baby(15 yrs old), I am more comfortably open to try a disc than a tampon. The Flex disc is the second product for menstrual cycles that I've used with pads being my first. I had long nails then, and it was my first time trying it. Can I just say, AMAZING! The beginning and end are tricky, but I've taken notes on how to do better and more comfortable the insertion and removal. The rest in between, though- I didn't even feel! Little to no leaks, felt comfortable, sometimes I got scared and I had regular cramps, but it was so nice and comfortable, I had no problem with it. It makes me not want to try tampons AT ALL. Definitely recommend.

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Reviewed by Leanna
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

Period Sex Baybeee!

I never write reviews but after seeing the negativity around Flex (size/fit/insertion/ ETC) I needed to write a review- because I LOVE my Flex discs.

Being able to have sex any day of the month without any mess, feeling sexy with ZERO worry about leakage? Thank you Flex!!

That said, my flow has never been heavy and I've never leaked through a tampon. But compared to a tampon, I feel much better with a Flex disc, hands down.

I usually save my discs for intimacy, so only order every 2 months, which is financially feasible for me.

Lastly, IT FITS people. It just isn't a tampon!

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  • Your period
  • Your lifestyle
  • Your concerns

Typically, how many days is your period?

How heavy is your flow on your heaviest days?

When did your last period start?

How many weeks do you typically have between periods?

What period product do you use most frequently?

How disruptive can your period be to your life?

What bothers you most about having your period?

What is the one thing you wish you could change about your period?

  • < 2 Days
  • 3 Days
  • 4 Days
  • 5 Days
  • 6 Days
  • 7 Days
  • > 8 Days
LIGHT (1-2 tampons/day)
MEDIUM (3-4 tampons/day)
HEAVY (4-5 tampons/day)
  • < 2 Weeks
  • 3 Weeks
  • 4 Weeks
  • 5 Weeks
  • 6 Weeks
  • 7 Weeks
  • > 8 Weeks
Tampon Tampons
Pad Pads
Menstrual Cup Cup
Menstrual Disc Discs
Period Panties Period Panties
Ellipses Others
Can’t get out of bed
Can’t do certain activities
I mostly feel uncomfortable
Just like any other day
I’m constantly running to the bathroom
I can’t sleep through the night
My work out routine is thrown off
I can’t have sex
I feel uncomfortable
Less cramping
Less odor
Fewer leaks
Risk of TSS
Less waste
If you’re not sure, choose MEDIUM.

All done!

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Here is our pick for you!
Flex Box
plan type
Light plan $6.50
4 Discs per cycle per period
frequency
8 Discs every 2 months
Light Flow Starter Kit
Includes 8 discs + our Getting Started Guide

We will automatically ship 8 discs for $9.99 every two months starting on . We’ll remind you before we process the next order. You can pause or cancel anytime, online.

Flex Box
plan type
Medium plan $12
8 Discs per cycle per period
frequency
16 Discs every 2 months
Medium Flow Starter Kit
Includes 8 discs + our Getting Started Guide

We will automatically ship 16 discs for $18.99 every one month starting on . We’ll remind you before we process the next order. You can pause or cancel anytime, online.

Flex Box
plan type
Heavy plan $14
Discs per cycle per period
frequency
24 Discs every 2 months
Heavy Flow Starter Kit
Includes 12 discs + our Getting Started Guide

We will automatically ship 24 discs for $25.99 every one month starting on . We’ll remind you before we process the next order. You can pause or cancel anytime, online.

Try FLEX with some liners at first.

Sometimes you just feel better with a little backup. FLEX plus liners would be a great combination for you while you transition to FLEX to help guard against leaks until you get the hang of positioning FLEX.

Not ready for membership? Try just one FLEX.

Here is our pick for you

Flex cup
Flex cup

FLEX Cup

$34.99 71+ Reviews

1 Menstrual Cup

  • + 1 Carrying Pouch
  • + 2 free Menstrual Discs

The FLEX Cup comes with 2 free FLEX Discs for you to try so that you can experience two new and innovative period products for no extra charge.

Free US Shipping

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