starter kit

For Light Flows

$11.99

Free US Shipping

(980+)

For Medium Flows

$11.99

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

Write a Review
average rating 4.5 out of 5
Based on 1970 reviews
  • 5 Stars
    1505 Reviews
  • 4 Stars
    210 Reviews
  • 3 Stars
    105 Reviews
  • 2 Stars
    70 Reviews
  • 1 Star
    80 Reviews
89% of reviewers would recommend this product to a friend
1970 Reviews
Reviewed by Bee
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

Game changer! Especially if you’re forgetful like me!

It took me forever to try a tampon alternative but I’m SO glad I finally hopped on the disc train!

PROS

(1) they truly lightened the usual mental load of period maintenance. Unlike tampons, I didn’t have to worry about leaking or frequent changing. I was able to sleep without disturbances & spend time outside (ie, out and about w/ limited to no public bathroom access) without worry. That alone was so unexpectedly valuable and the biggest pro for me bc I’m often distracted/forgetful.

I foresee these being a massive game changer for me for things like outdoor concerts/festivals, traveling, nights out, etc.!

(2) I was genuinely surprised at how much more comfy than tampons (—and def pads—) these were. once I got settled in, I didn’t feel *a thing*.

(3) the learning curve was super low (which was formerly a passive but significant deterrent for me, re: discs and cups); getting the hang of using these was a breeze for me. By the second disc I felt totally familiar with the process and had no issues the rest of the week.

(4) unlike tampons, there isn’t unfriendly stuff that can throw you *~off balance~*.

CON (more like “EH”)

A minor challenge (and the only one so far) for me is the changing process bc I’m used to the convenience of a string sitch (I’ve yet to have to change while using a public restroom) but again, low learning curve product!

Also, changing isn’t as frequent as tampons/pads and the “hands-free emptying” method gave me peace of mind between changes. For…

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

Best period experience ever!

I have tried all sorts of products and none of them worked well for me, either irritating me, making me cramp more, or having weird chemicals that threw my pH off. Seriously, it was to the point I was free-bleeding or using (clean, all-cotton) socks as pads. I kept seeing Flex advertised and finally decided to take the plunge, and I'm so glad I did! I had an initial moment of panic after inserting the disc, worried I wouldn't be able to remove it, but I'm happy to report they are super easy to remove! Flex is comfortable and effective, and I love that it doesn't interfere with my pH at all. I also enjoy being able to have mess-free period sex...hooray for no more blood-stained sheets! I've been giving out Flex to everyone I know who gets their period, I'm that in love with them! Totally worth the cost, totally effective, and totally comfortable...what more could you ask for?!

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

Ditched the tampons

I ditched tampons for good and solely use flex disc. Not only are they more convenient and comfortable, they have reduced my cramps immensely.

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

Game changer

I absolutely love these! I have less if any cramping. My periods have been shorter. I love that it’s less waste than pads and tampons. Also like others have said as well you can’t feel it at all. So comfortable I forget I’m on my period most times.

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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.
I don't know
Tap here if your cycle is shorter than 26 days or longer than 32 days.
My cycle is too irregular to predict

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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 $27.98 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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