• Ruby Cup period products including a cup, underwear, and packaging on a white background
  • Teenage dream bundle with Ruby Cup Feraless period underwear and purple menstrual cup
  • Ruby Cup Fearless period underwear labeled with features and OEKO-TEX logo.
  • Person holding a purple Ruby Cup menstrual cup with Fearless pink cheetah print period underwear
  • Children in school uniforms with raised hands plus text about Ruby Cup social impact and donations.
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Teenage Dream Period

Teenage Dream Period

Pants size guide

Trustpilot

Two pairs of Fearless period underwear and a Ruby Cup: the ultimate first-period kit for main character moments (and messy ones too). Double the comfort, double the confidence. This teen-special bundle is Clueless-level iconic, with two pairs of fearless, leak-proof undies and a Ruby Cup that says, “good 4 u” to pads and panic. Because your first period kit should feel more Summer I Turned Pretty, less Euphoria meltdown.

The Details

Ruby Cup promises a comfortable fit with each wear. Made from medical-grade silicone, its flexible and seamless design means easy application: perfect for first-time users.

Fearless period pants are thoughtfully designed with a lower cut, lighter feel, and a built-in pad designed for lighter days, giving you the freedom to move confidently and comfortably, day or night.

The good stuff

One cup equals 3 super tampons and can hold up to 50 ml
Depending on your flow, you can wear your Ruby Pants for up to 12 hours
PFAS, silver, and chemical free – no nasties here!
Washable, reusable, and 100% sustainable
Ruby Cup comes in two sizes to fit every body perfectly
For every Ruby Cup purchased, we donate another
Wave goodbye to leaky pads and experience soft, stretchy comfort with every wear Hipster style for protection and confidence under every outfit

Care instructions

For your Ruby Cup:

* Before and after your period

Use our Ruby Cup Sterilizer to clean your Ruby Cup in the microwave or use a pan on the stove.

* During your period

Simply empty your cup, rinse under clean running water, reinsert and go! In a public toilet, use a bottle of water to rinse your cup over the toilet. Or wipe clean with dry or damp toilet paper, then reinsert.

Wear. Rinse. Repeat. Simple!

For your Fearless period underwear:

Our Fearless pants are built to last. Care for them easily with these simple steps:

  • Wash on a cold wash and hang to air dry
  • Avoid fabric softener and bleach
  • Steer clear of tumble drying, or ironing

Product composition:

  • Lining – 100% Antibacterial Cotton
  • 2nd and 3rd layer – 100% Polyester for leak-proof absorption
  • Outer fabric – 85% Polyamide and 15% Elastane for a soft and secure fit

Social Impact

Periods shouldn’t stop anyone from living their best life. That’s why we’re breaking down barriers for people with periods everywhere. With sustainable, premium products that are accessible to all, we deliver real social impact across the globe.

Ruby Cup is proud to be the first-ever menstrual cup brand to introduce the ‘Buy One, Give One’ program. Not familiar? No problem! For every Ruby Cup purchase we donate one to someone facing period poverty around the world, on your behalf. Pretty great, right?

Thanks to our Ruby Community and our cherished NGO partners, we’ve donated over 150,000 period cups worldwide. And we’re not stopping there.

We’re committed to supporting education and working with like-minded organizations to create lasting change. For every sale of Fearless period pants, we proudly donate 2% of the revenue to our Learning Centre nursery based in Kisumu, Kenya. We built the nursery with our long time partners, Golden Girls Foundation, and today your support and our donations continue to contribute to nurturing young minds and inspire a love for learning.

The Ruby standard

We say no to nasties. Free from BPA, latex and toxins, our Ruby Cup provides a reliable and eco-friendly solution for your monthly cycle. And it's made from safe and hygienic medical-grade silicone. Kind to you, kind to the planet – win-win.

Because we’re determined to provide period products that are good for you and the planet, our Fearless period pants are Standard 100 by OEKO-TEX Certified. This means each component is rigorously tested for harmful substances, making sure they pass the test for health and safety without compromising on comfort and quality. We call that our pants priority. And it’s not just us saying we’re doing good—our products have been rated as the best ethical buy by the Good Shopping Guide!

Shipping and returns

SHIPPING

* United Kingdom:

Tracked shipping: Free for all orders / 3 business days

* Worldwide:

  • Untracked shipping (Please take into account that no tracking is included): Between £2-£8.5, depending on your parcel size and shipping destination / 9-12 business days from the fulfillment date.
  • Tracked shipping:  Between £5.50-£15.00, depending on your parcel size and shipping destination / 5-7 business days from the fulfillment date.

RETURNS

  • Ruby Cup Menstrual Cup: 120-day Money Back Guarantee

Not completely in love with your Ruby Cup? No stress. Our Money Back Guarantee is valid within 120 days from your original purchase, so you can return your Ruby Cup or change size, hassle free.

Simply fill in the Return Form, pop your cup in the post and we’ll send you a different size or process your refund (all you’ll need to do is cover the shipping cost).

Our Money Back Guarantee is available for Ruby Cup purchases (but not our other products). It's only valid once, so no double swapsies or refunds after trying a different size. Check out our T&Cs for more details.

  • Ruby Cup Period Underwear: First-Time Customer- 60 Day Try & Love It Guarantee

As a first-time customer, you can try one pair of Ruby Cup Underwear risk-free for 60 days. If you're not satisfied, you can return it and claim a refund.

To claim your 60-Day Risk-Free Trial, simply email us at hello@rubycup.com with your order number, details of the underwear you’re claiming, and the reason for your return. We’ll send you instructions on how to return it. Once we receive the returned pair, we’ll issue a refund or credit for the purchase price (excluding shipping costs).

60-Day Risk-Free Trial and Bundle Packs: If you bought a bundle pack as a first-time customer, only one used pair is eligible for a refund. All other items must follow our flexible returns for your peace-of-mind policy.

  • All products: Flexible returns for peace of mind

We get it – sometimes you might just change your mind. That’s why we offer easy exchanges or credits. Here’s how it works:

* Return your products within 30 days of receiving them

* Make sure they’re unopened, in original condition, with tags still attached (where applicable)

* For bundles: You can try on one item, but the rest must stay unopened.

* Our Ruby Kegel Trainer is not valid for return. If you received a faulty or damaged parcel, please get in touch.

* Send the whole pack back together – no individual returns from a bundle please!

Need to return something?

Drop us an email to hello@rubycup.com with details of the product(s) you’re returning.

You’ll need to cover the return shipping (we recommend using a tracked service to avoid any mishaps).

View full details

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Trustpilot

Good to know

What is a Ruby Cup?

Enjoy the freedom of a period without limits with Ruby Cup. Created with first-time users in mind, our Ruby Cup’s a planet-friendly, reusable solution to single use tampons and pads.

Made from medical-grade silicone, Ruby Cup’s flexible and seamless design makes it easy to use, even for beginners.

Our cups give comfortable, reliable and leak-proof period protection for up to 12 hours, day and night, whatever your plans. Voted best cup for sports by Women’s Running Awards 2024.

3x the capacity of a super tampon
100% vegan and plastic free
15K+ tons plastic saved
120-day money back guarantee

How do I insert a Ruby Cup?

Always wash your hands thoroughly with soap and water before handling your cup.

Before inserting, you have to fold the cup. There are 3 folding methods you can try. Allow yourself some trial and error with each method to find the one that works best for you.

Now you have folded your cup, find a preferred position to insert your cup. Try squatting, standing with one leg up or sitting.

Gently push the Ruby Cup into your vagina with the rim first. Insert it in a horizontal, rather than a vertical, direction in line with your vaginal passage. You can use your other hand to separate your outer labia if that is helpful.

Push the cup inside until the body of the cup is all the way inside your vagina.

Once inside, the cup will unfold to create a suction that keeps it well positioned and prevents leaks. You may sense it popping open.

You can test that the cup is fully opened and has created a suction by trying to pull or wiggle the stem very carefully. It should not move more than a few millimeters. If you feel resistance when carefully pulling it, it means that the suction is created.

You can also run a finger along the base of the cup (not the stem). If you feel that the walls are still collapsed inside, rotate the cup at the base of the cup to reposition it to pop open.

You can also run your finger along the rim to check for creases. Wiggle the stem to remove any creases as these will cause leaks.

Which Ruby Cup size is right for me?

Take Our Size Quiz to find your perfect fit.

The two key factors to look out for when choosing the right cup size are:

- Position of your cervix (don’t know how to measure it? Check out the next question)

- Heaviness of your menstrual flow


How do I know if I have a high or low cervix?
Follow our guide to measure your cervix:

1- Wash your hands carefully
2- Squat on the ground, or lift one leg up onto the toilet seat or side of the bath
3- Insert your longest finger into your vagina
4- Feel for a round, raised circle with a dimple in the middle. It should feel like the tip of your nose — it’s most likely to be at the top of the front vaginal wall (closer to your belly button than to your back)

If you can insert your longest finger almost all the way up before touching it or you can’t touch anything at all, you have a high cervix.

What are the benefits of using a Ruby Cup?

A Ruby Cup is a menstrual cup that comes with a generous handful of benefits that traditional methods just can’t offer. Here are just a few:

*Eco-friendly: a Ruby Cup can be re-used for up to 10 years;

*Affordable: because a Ruby Cup lasts up to 10 years, you’ll rake in long-term savings of more than 95% compared to disposable period products;

*Less fuss: a Ruby Cup has 3 times the capacity of a super tampon. Depending on the heaviness of the menstrual flow it can be worn up to 8 hours. You have everything you need in one simple product;

*Healthy: the Ruby Cups are made from 100% medical-grade, soft silicone and are free from plastics, latex, toxins and bleaches. As they collect, but don't absorb the menstrual flow, the vaginal flora stays intact;

*Life-changing: we call it the ‘Buy One, Give One’ programme. For every cup we sell, we’ll donate one to a girl or woman without access to menstrual care product.

How do Ruby Cup Period Underwear work?

Ruby Period Underwear has multiple absorbent layers, including an inner layer of polyester and nylon blend and a middle layer of polyester for enhanced absorption. These additional layers trap your menstrual fluid, keeping you feeling dry and fresh throughout your cycle.

Are Ruby Cup Period Underwear reusable?

Yes, Ruby Cup Period Underwear is reusable, making them eco-friendly and cost-effective. Simply rinse them in cold water after use and hang dry. Avoid using fabric softener, bleach, tumble drying, or ironing to maintain their quality and performance.

Do Ruby Cup Period Underwear leak?

Ruby Cup Period Underwear is designed to provide leak protection and peace of mind. The absorbent layers and secure fit help prevent leaks during normal wear. However, it's crucial to choose the appropriate absorbency level for your flow and change them as needed.

How long does Ruby Cup Period Underwear last?

The lifespan of your underwear depends on several factors, such as frequency of use, washing habits, and washing methods. On average, you can expect a pair to last about 5 years.

Are Ruby Cup Period Underwear safe for my health?

Absolutely. Our period underwear is Standard 100 by OEKO-TEX Certified, ensuring that every component is rigorously tested for harmful substances. Your health and safety are our top priority.
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