Try FLEX™ with Emily K. for $1.

Have the most comfortable period of your life.®

Not a cup. Better than tampons. FLEX is a body-safe alternative that lasts up to 12 hours.

Try FLEX Shipping

sits somewhere different.

Unlike tampons and menstrual cups, FLEX sits just past the vaginal canal and can’t be felt at all once in place.

FLEX collects fluid instead of absorbing like pads or tampons and can hold as much as 3 super tampons.

sits somewhere different.

The first step to understand the benefits of FLEX is to understand your own anatomy.

FLEX collects fluid instead of absorbing like pads or tampons and can hold as much as 3 super tampons.

Based on 1000+ reviews

As seen on

Try FLEX now $15

“Flex was designed to solve many of the problems caused by traditional menstrual products.”

Dr. Jane Van Dis, MD

Certified OBGYN

is easy to use

Try FLEX now $15

Questions & Answers

View All FAQs

1. What is Flex Disc?

Flex Disc is a flexible ring with a catch that sits at the base of the cervix in a place called the vaginal fornix.

It is single-use and can be worn for up to 12 hours. Because of where the disc sits in the body, it can also be worn during penetrative sexual intercourse.

2. Does Flex Disc work with a heavy flow?

Yes! The majority of our customers have heavy flows - including those with endometriosis and PCOS who swear by FLEX disc. It can hold up to three super tampons worth of menstrual fluid and is safe to wear for up to 12 hours.

Another benefit of using FLEX Disc on a heavy flow day is that we have a trick for hands-free emptying so you don’t even have to remove your disc to achieve the full 12-hour wear!

3. Does removing get messy?

Whenever you try a new period product, removal can be a little wonky at first. You may get period blood on your hand but it gets easier the more you do it. FLEX Disc can take a little bit more practice and for some people it can get a little messy. However most people will plan their disc wear around their schedule in order to remove the product in the comfort of their home or in the shower.

4. Can I swim while wearing FLEX Disc?

Yes! FLEX Disc is safe to wear while swimming - in pools, oceans, rivers, hot tubs - wherever, whenever!

View All FAQs

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?

LIGHT (1-2 tampons/day)

MEDIUM (3-4 tampons/day)

HEAVY (4-5 tampons/day)

Tampons

Pads

Cup

Discs

Period Panties

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

All done!

What email would you like your results sent to?

By clicking "See My Results" you agree to
receive email from The Flex Company.

Here is our pick for you!

plan type

Light plan $6.50

4 Discs per cycle per period

$6.50

per period

Based on 400+ reviews

frequency

8 Discs every 2 months

Based on 400+ reviews

Light Flow Starter Kit

Includes 8 discs + our Getting Started Guide

One-time purchase

Subscribe & save

Deliver every

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.

plan type

Medium plan $12

8 Discs per cycle per period

$12

per period

Based on 400+ reviews

frequency

16 Discs every 2 months

Based on 400+ reviews

Medium Flow Starter Kit

Includes 8 discs + our Getting Started Guide

Deliver every

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.

plan type

Heavy plan $14

Discs per cycle per period

$14

per period

Based on 400+ reviews

frequency

24 Discs every 2 months

Based on 400+ reviews

Heavy Flow Starter Kit

Includes 12 discs + our Getting Started Guide

Deliver every

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.