We have created a range of period underwear designed to fit every need.
Period Underwear for Every Body
At Ruby Cup, we’ve developed a range of period underwear designed to meet the needs of every body. Whether you’re facing your heaviest days or your lightest, we’ve got you covered. Our Flow Freedom line is ideal for the heaviest flow, while Fearless is perfect for lighter days, those with naturally light periods, or anyone using an IUD who experiences light bleeding or spotting.
Stay Comfortable and Confident, No Matter the Flow
Both lines are designed to keep you comfortable, confident, and leak-free. Made from ultra-thin, breathable, and stretchy fabric, our underwear feels soft against the skin and never bulky. Depending on your flow, Ruby Cup Period Pants can be worn for up to 12 hours of reliable protection.
Washable, Reusable & 100% Sustainable
Our period underwear is built to last for years, reducing waste and supporting a more eco-friendly lifestyle. By choosing Ruby Cup period underwear, you’re not only prioritising comfort and performance, you’re also making a meaningful step towards a greener planet.
Certification
Ruby Cup Period Underwear is Standard 100 by OEKO-TEX Certified. Each component is rigorously tested for harmful substances, ensuring your health and safety are prioritised.
Flow Freedom
Absorption. With an impressive 50 ml capacity, equivalent to 3 tampons, Ruby Cup Flow Freedom Period Underwear provides reliable protection throughout your entire cycle, even on your heaviest days.
Style. High-waisted for a flattering, comfortable fit. It’s like a gentle hug for your hips.
Composition. Crafted with a unique fabric blend for maximum comfort and performance:
• Inner layers: 80% Polyester and 20% Nylon
• Middle layer: 100% Polyester for enhanced absorbency
• Outer layer: 78% Nylon and 22% Spandex for a secure, breathable fit
“ ” Kimberly
These are really comfortable period underwear it fits true to size and I haven’t had a leak when on unlike with pads or tampons
Confortable fit
Full-length built-in pad
Period Underwear Flow Freedom
Flow Freedom
Colours:
Sizes:
Aubergine Burgundy
Dusty Rose Black
Fearless
Absorption. The absorption is equivalent to two light tampons or pads. Whether it’s the last few days of your cycle, a naturally light flow, or just the desire for extra peace of mind any time of the month, Fearless has you covered.
Style. Low-cut and lightweight, made for comfort and confidence, whether you’re exercising, running, or relaxing.
Composition.
• Lining: 100% Antibacterial Cotton
• 2nd and 3rd layers: 100% Polyester for leak-proof absorption
• Outer fabric: 85% Polyamide and 15% Elastane for a soft, secure fit
“ ” Chloe
The Fearless period underwear work amazing for light flow days. I hated wearing pads before while being at the end of my period so now having this underwear that looks super cute but still makes me feel secure is amazing, I forget I am even on! Definitely recommend
Light flow
Low-cut and lightweight Small built-in pad
Period Underwear Fearless
Fearless
Colours:
Sizes:
Pink Cheetah Lilac Blue Cheetah
Care Instructions
To maintain the exceptional quality and performance of your Ruby Cup Period Underwear, follow these simple care instructions:
1. Rinse in cold water first
2. Machine wash gently in cold water and hang to dry
3. Avoid fabric softener, bleach, tumble drying, or ironing
Ruby Cup Period Underwear
More Than a Decade of Social Impact
Since 2011, Ruby Cup has been committed to making a difference through product donations and menstrual health education.
In 2013, we partnered with the Golden Girls Foundation to support girls from underprivileged communities in Kenya. What began as a mission to distribute menstrual cups and provide education in Nairobi quickly expanded to Masogo village in Kisumu, where our collaboration helped establish a learning center.
Today, that centre supports over 200 children, employs 20 local women as teachers and mentors, and provides a safe, empowering space for both kids and working mothers.
With our Ruby Cup Period Underwear range, we’re continuing and growing our mission. We donate 2% of the revenue from our underwear sales to the Golden Girls Foundation Learning Centre in Kenya, helping to shape a brighter future for the next generation. Because we believe education is power and everyone deserves access to it.
