not all period products

are created equal

Considering the switch from
tampons? Period innovation is
here to give you freedom.

Why Flex®?

Flex products collect fluid instead of absorbing like pads or tampons, reducing bacteria growth and risk of TSS. They hold as much as 5+ super tampons.

Flex Disc sits somewhere different

Period freedom is here

Unlike other period products that sit in the vaginal canal, Flex Disc sits in the vaginal fornix. Plus, Flex Disc collects fluid rather than absorbing it like a tampon.

Up to 12-hour wear during sleep, exercise, swimming, and more

Have period sex without the mess thanks to the unique positioning

Reduced cramps in over 60% of surveyed users

Reduced dryness and irritation in over 80% of surveyed users

Not linked to TSS

Dr. Jane Van Dis, MD Photo

“Flex was designed to solve many of the problems caused by traditional menstrual products. It doesn't change the vaginal flora reducing the risk of infections and has not been linked to toxic shock syndrome."

Dr. Jane Van Dis, MD

Certified OB/GYN


A helpful guide to Flex Disc insertion, wear & removal.

How it works step PINCH


Flex Disc may look big but it’s actually smaller than a tampon when inserted. Start by washing your hands and pinch it in half.

How it works step INSERT


Use a clean finger to push the disc back and down toward the cervix, then tuck it up and behind the pubic bone.

How it works step WEAR


Once the disc is in place, you should be comfortable and unable to feel it. You can wear it safely for up to 12 hours.

How it works step REMOVE


To remove, hook a clean finger under the rim of the disc and pull straight out. Keep it parallel to the floor to avoid spillage.

How it works step DISPOSE


Pour the liquid into the toilet, and wrap the disc in toilet paper (or a Flex Eco Disposal Pouch) before tossing it in the trash.

How Flex Disc stacks up

Flex DiscTampons
12-hour wearCheckmark iconCrossmark icon
Holds equivalent of 5+ super tamponsCheckmark iconCrossmark icon
Mess-free period sex™Checkmark iconCrossmark icon
Not linked to TSSCheckmark iconCrossmark icon
60% less waste than pads and tamponsCheckmark iconCrossmark icon
Does not disrupt your vaginal pHCheckmark iconCrossmark icon
Flex Disc FAQs

How do I insert Flex Disc?

First, wash your hands. Find a position to insert your disc: Some sit over the toilet, some stand with a leg elevated, some insert in a full squat. Play around until you find a position that works best for you!

Pinch the disc in half and begin inserting it into the vaginal canal, making sure you are pushing the edge that goes in first down and back towards your tailbone so that it sits at an angle and fully covers the cervix. Down and back is key! Then, tuck the front rim above and behind your pubic bone. Make sure it's pushed past the pubic bone as far as it can go.

You shouldn't be able to feel the disc. If you can still feel the disc internally, meaning with your vagina, just take it out and try it again. When you’re first starting out, know that it’s normal for it to take a few tries before you’ve mastered insertion! Learn more here.

Does Flex Disc really work during sex?

Yep! Because Flex Disc sits the vaginal fornix, it leaves the vaginal canal unobstructed—which means sex is on the table all month long. As long as the disc is inserted properly, neither you nor your partner should be able to feel it. However, if your partner (or toy!) is particularly large, there may be some contact with the disc. This shouldn't cause any discomfort and the disc should stay in place.

Will it leak while going to the bathroom?

Seeing a little blood in the toilet or on your TP when wearing a menstrual disc is a-okay. What’s happening is that your disc is sliding down a little bit in your vaginal canal when you engage your pelvic floor to pee or poop. Your disc’s front edge may have made its way just beyond your pubic bone—and this lets a little fluid out.

Believe it or not, this is a feature we really love about using a menstrual disc! The technique is called hands-free emptying, and it will help you maximize your wear time to the full 12 hours (even on your heaviest days) without needing to remove or change your disc. Read more about it here and on the blog

“If you want a cup that’s as easy as pulling out a tampon string: Flex Cup”

Cosmopolitan Icon

Why you'll love Flex Cup

Velvety-soft feel

Designed with your comfort in mind.

Body-safe materials

Made from 100% medical-grade silicone.

Patented pull-tab

Beginner-friendly. Adjustable in length. Removes like a tampon.

100% reusable

Great for your wallet. Even better for the planet.

How Flex Cup stacks up

Flex CupOther Cups
Patented pull-tab that removes like a tampon
Adjustable stem length
Breaks the seal for easy removal
Anti-stain design
Perfect fit guarantee
Made in the USA
Flex Cup FAQs

Why choose Flex Cup?

Flex Cup is the only menstrual cup in the world designed to be as easy to remove as a tampon, thanks to its patented pull-tab. No more struggling to pinch the base of your menstrual cup to break the seal during removal: Flex Cup’s pull-tab does it for you. Just loop a finger through the ring and pull down slowly but firmly. 

Made with 100% medical-grade silicone, our reusable cup is body-safe and beginner-friendly. Flex Cup provides up to 12 hours of leak protection and has a velvety-soft feel to maximize comfort. The pull-tab is adjustable, too, making it easy to reach for removal (even if you have a high cervix). 

Can I wear Flex Cup with an IUD?

Lots of Flex Cup users have IUDs! 

There is a small risk of any internally worn menstrual product getting caught on your IUD—including tampons, menstrual discs, and menstrual cups. That’s why we recommend consulting with your healthcare provider or Ob/Gyn prior to using a new period product if you have an IUD. They will have more information about your specific IUD and how it’s positioned in relation to your internal anatomy. They can also trim your IUD strings shorter if needed.

For more info, check out our blog article about using menstrual cups and discs with an IUD.

Will Flex Cup work for a heavy period?

Many of our customers with heavy periods swear by Flex products. Flex Cup is a great option for users with heavy flows. Size 01 holds the equivalent of 2 super tampons, while Size 02 holds 3 super tampons-worth of period blood. Plus, the cup's adjustable pull-tab makes it easy to remove, empty mid-wear, and reinsert on the heaviest of days.

If you have any questions or need assistance, don’t hesitate to reach out to our team of Flexperts: Call or text us at 800-931-0882, chat with us online, or email us at

How do I insert Flex Cup?

The key to inserting Flex Cup is to find a fold and insertion method that works best for you. Using a menstrual cup should be easy, but as with any new period product, it can take a little practice to master the technique!

First and always, wash your hands. It’s a good idea to refresh your cup, too, by cleaning it with warm water and a mild soap or cleanser (like Flex Foaming Cleanser). Next, fold your cup (check out our favorites here). Once folded insert your cup into the vaginal canal as high or low as you'd like. Run your finger between the cup and your vaginal wall to make sure it’s popped open all the way.

You’re all set! Some users will do some squats or shimmy to make sure the cup is in place.

meet your new bff

flex reusable disc

Thoughtfully designed to mimic the comfort of the original Flex Disc you know and love—but it's 100% reusable.

learn more