The CascoCup Difference

Know, Love and Trust that Casco Cup is made for you, by people like you!


Designed, produced and ships to you directly from
Casco Bay Molding, our ISO-Certified facility in Southern Maine, USA.

Better Materials

Produced from the highest quality Medical Grade,
Class VI Silicone.
No Latex, Plastic, BPA, dyes, or chemicals.

Safety First

FDA-registered cup made from USP Class VI silicone with full material traceability.
Here's the material certs to prove it!

Casco Case

Our silicone carrying case is a debris-free, secure way to carry your Casco Cup on the go.

So...Why Menstrual Cups?

Menstrual cups are the sustainable, healthier,
and budget friendlier alternative to pads and tampons.

Happy Earth

Resuse one cup for years, eliminating thousands of pounds of pad and tampon waste from landfills.

Happy Body

Soft, comfortable silicone is less disruptive to natural vaginal pH and prevents embarassing leaks or odor

Happy Pockets

Pays for itself in months and saves thousands compared to monthly pad & tampon purchases.

CascoCup vs.Tampons & Pads

Apples for Apples, Tête-à-Tête.

  Casco Cup Tampons Pads
Up to 12 hours continuous use? × ×
Reuse one for many years? × ×
No landfill waste? × ×
Medical-Healthcare Grade Materials? × ×
Doesn't disrupt natural vaginal pH? ×
Odor-free? × ×
Leak-free protection? × ×

What size is right for me?

Recommended sizing is outlined below.
Please consult a physician for your specific needs.



inch: 2.37 long x 1.67 rim dia
mm: 60 long x 42 rim dia

For women who:
Have a low cervix

Holds up to 25 ml


Size 1

inch: 2.75 long x 1.67 rim dia
mm: 70 long x 42 rim dia

For women who:
Have not given birth, or
Are under 30 years old

Holds up to 30 ml


Size 2

inch: 2.75 long x 1.81 rim dia
mm: 70 long x 46 rim dia

For women who:
Have given birth, or
Are over 30 years old

Holds up to 40 ml

Using CascoCup

Don’t worry, it may take some practice inserting and removing. Stay relaxed, keep trying and once you get the hang of it, you’ll LOVE your cup!


Thoroughly wash your hands and then your Cup with warm potable water and mild/unscented soap. Make sure the four holes under the rim are cleaned out. You may also boil the cup each month prior to use.

fold icon

Use a "C" or "Punch Down" fold. Try both or experiment with other folds to see what works best for you. 

Learn more on folds


In a relaxed position, usually sitting on the toilet or squatting in the shower, slide the folded cup into your vagina so that it is angled towards your tailbone and the stem is within a 1/2 inch of your vaginal opening and release.

positionRotate the cup to ensure its fully open and sealed against the vaginal walls. You can also flex your vaginal muscles to help locate it. Once comfortably placed, you should not feel anything.


Work hard & play harder! Enjoy up to 12 hours of comfortable, odor-free & worry-free protection. Empty at least 2 times per day. 


Wash your hands in warm soapy water. Find the stem with your thumb and index finger and pinch the grooved area above the stem to release suction. Remove slowly to minimize spill. Empty in the toilet and repeat these steps.


These are only two of the many folds you can try.
Feel free to watch videos and experiment to find out what works best for you!folds

Don't let your period hold you back!

Stay confident and focused on what you love doing every day of the month! Casco Cup's 12-hour wear time makes it great for:


Whether flying, road trips, or camping, Casco Cup will keep you clean and comfortable. Just make sure to wash with clean, drinkable (potable) water.

Playing like a Girl!

Casco Cup's soft silicone moves with you while you play sports, practice yoga, swim, or run a marathon. You won't even know its there!

Work it!

Casco Cup will eliminate the extra stress of "did-I-leak" shuffles through the office, and potentially eliminated ever having to deal with your period at work again.

Frequently Asked Questions

How long can I wear Casco Cup?

Up to 12 hours and even overnight! Make sure to empty it at least 2 times per day, and enjoy the freedom of fewer changes and not having to carry around extra pads and tampons!

It sounds messy...

That's what a lot of women think when they hear how it works, but it's actually cleaner, healthier, better for the environment, and you get to know your body a bit better. Tampons and pads are quite messy and worst of all...stinky due to blood being exposed to air. Trust us, you will be amazed at how easy menstrual cups can be and wonder why you haven't tried this sooner!

Can it get stuck or lost inside of me?

Nope! It can be tricky to remove at first, but once you get the hang of it, you'll be a pro. For most women, the vaginal canal is about 4 inches long, unless you have a low cervix, in which case your canal is shorter, so the cup can't go far. If you are having trouble finding the stem, push like having a bowel movement while feeling for the stem with your index finger and thumb. The cup should move down a bit and the stem will be more accessible. Then simply pinch the base of the cup to release the ‘seal’, and move it down and out.


Where exactly is the cup supposed to be?

There's no exact spot since each women's vagina and cervix is different. The cup seals against the vaginal muscles and fits below the cervix in the vaginal canal. In most cases, the tip of the stem is within 1/2"-1" from the vaginal opening. As long as there is no discomfort and no leaks, you should be good to go!


That cup will fit in there?! It looks big!

The cup folds down to the size of a tampon for easier insertion. Once open, the cup's rim seals against the elastic vaginal wall muscle. We suggest a couple of folds above, but please experiment with different folds to find what works best for you.

I'm having trouble with leaks, what should I do?

Check to make sure it's positioned properly, fully open, or try re-inserting it. If you still have trouble, check for damage. If there is no damage and reinserting doesn't work, you may need to try a different size.

What is Casco Cup made from?

100% Medical Grade, Class VI Silicone, the same material used in baby bottle nipples and medical devices. This class of silicone meets very strict requirements for bio-compatibility. A more detailed explanation can be found on our factory's website,

How is the Casco Cup classified by the FDA?

The Casco Cup is FDA-registered Class II Medical Device. The FDA doesn't grant "approval" to menstrual cups; they have found them to be safe enough to exempt them from the approval process. Casco Cup is committed to being transparent with our compliance to FDA standards. More information can be found at

What if I am away from home and have to empty my cup in a public restroom?

We get this question a lot. Generally you will most likely be home within 12 hours for the 5-7 days you are on your period. However, if you are away or traveling, here are some tips:

  • First, always wash your hands, and ALWAYS make sure to use potabale/drinkable water when cleaning your cup
  • Many stores, malls, airports, and gas stations have single stall or "family" restrooms. You can find one for a little more privacy.
  • In public restrooms, take a damp paper towel or bottle of water into the bathroom stall with you. Remove and empty your cup in the toilet, then wipe it out with the damp paper towel or pour some water in to rinse and empty it in the toilet, then reinsert. The next time you are able, wash your cup more thoroughly.
  • In a pinch, you can remove and empty the cup, then reinsert it without washing. The next time you are able, wash your cup more thoroughly.

Can I sleep with Casco Cup in?

Yes, just be sure to empty & rinse when you wake up, and at least every 12 hours.

Can I swim with Casco Cup in?


Can I use Casco Cup with an IUD?

Please be sure to talk with your doctor or gynecologist first. Improper use can cause your IUD to dislodge.

Is Casco Cup comfortable?

When Casco Cup is inserted properly you should not feel it and it should not leak. If it is uncomfortable or can be felt, it is inserted incorrectly, tilted, or not fully open. You can try flexing your vaginal muscles or rotating the cup to ensure it is open all the way, but if all else fails, its best to just reinsert it.

Can Casco Cup cause Toxic Shock Syndrome (TSS)?

TSS is very rare, and even more rare with menstrual cups, however if you experience sudden fever, sunburn-like rash, dizziness, and flu-like symptoms while using your cup, remove it and immediately seek medical attention- without early treatment TSS can be fatal.

TSS is a release of toxins into the bloodstream from a bacterial infection (Staphylococcus aureus, or group A streptococcus). It has been linked to high absorbency tampons because they can cause dryness and can scrape the vaginal walls allowing the bacteria to get into an open wound.

Questions to ask your Cup Manufacturer:

  • Are your Cups compression molded or injection molded?
  • Do you use Platinum-cure Liquid Silicone Rubber (LSR), or Peroxide-cure High Consistency Rubber (HCR)?
  • If HCR: How are the Cups post-cured or post-baked to remove toxic volatiles? Are there any additives or fillers used in the HCR?
  • Will you, the supplier, provide a certification for the Silicone used in production? If you used HCR, will the "Cert Sheet" include details of post-cure/post-bake, as well as all additives and fillers?