Fibra
Technology
How It Works: Using Fibra’s Smart Underwear Is As Easy As 1-2-3

Step 1: Wear It. Snap It On.
Slip into Fibra — designed for comfort, breathability, and all-day wear. Attach the small detachable electronic unit to the magnetic waistband — secure, discreet, and built to move with you.

Step 2: Pair It With Your Phone.
Open the Fibra app and connect via Bluetooth in just a few taps. Once paired, The detachable electronic unit syncs automatically — turning your underwear into a seamless, always-on wellness companion.

Step 3: Live Your Life. We’ve Got the Data.
Go about your day while Fibra continuously captures your body’s signals. Whether you're sleeping, working, or relaxing, the app delivers real-time insights into your cycle — including trends, ovulation timing, and more — automatically.
- Safe for all-day and overnight wear
- No wires, no devices, no hassle
- Syncs automatically with the Fibra™ app
- Soft, stretchy, and breathable — slip it on and forget it's even there.
- Real-time cycle and fertility tracking
- Battery lasts up to 4 days — fully rechargeable
- Visual charts, predictions & health tips in the app
- Your data, your control
"The most exciting thing about Fibra is the control it gives women - the ability to monitor their bodies daily without invasive tests."
Dr. Parvaneh Saharkhiz, MD
Parvaneh Saharkhiz is the CEO and co-founder of Elan Healthcare, a leading pharmaceutical company specializing in women’s health and hormone therapy.

Enhanced Sensitivity and Stability of Wearable Temperature Sensors: A Novel Approach Using PEDOT:PSS
We’re thrilled to share the first published paper from our team at Fibra, showcasing a major breakthrough in wearable temperature sensing technology! Built on real data — not guesses. Fibra is powered by advanced textile sensors, validated through research and millions of real data points.
Designed to understand your body — without disrupting your life.
Designed for comfort
● Soft, breathable, and made for all-day wear
● Safe materials designed for intimate health
● No wires, no extra effort, no interruptions
● Technology that adapts to your daily life
Battery Life
Up to 4 days of battery life
AI & Data Focus
Our proprietary AI technology learns from your data to provide personalized insights, helping you track, plan, and optimize your reproductive health with ease.
Sensors
● Continuous heart rate & HRV monitoring
● Skin temperature tracking across your cycle
● PH and discharge changes captured directly from fabric
Connectivity
Bluetooth Low Energy
Seamless & Comfortable Wear
Biocompatible, allergen-free materials ensure a smooth, comfortable fit integrated within everyday underwear.
Real-time clarity into your reproductive health — no more guesswork
The world’s first smart underwear™ powered by textile-based sensors. Continuously tracking key biological signals — giving you clear, real-time insight into your reproductive health.
1 - Yarn
At Fibra, innovation begins at the fiber level. Our cutting-edge patented yarns are engineered to seamlessly integrate into your clothing, transforming everyday wear into a powerful tool for monitoring key biomarkers with precision and ease.
2 – Knit
Our revolutionary Smart Underwear™ are crafted with patented, cutting-edge yarns to provide effortless, continuous reproductive health monitoring. Say goodbye to invasive, outdated devices—Fibra is setting a new standard for personalized, hassle-free women's health solutions.
3 – Data
At Fibra, we’re transforming women’s health by delivering powerful, real-time insights through our Smart Underwear™. Starting with fertility, we’re empowering women with accurate, actionable data to take control of their reproductive health—but this is just the beginning. The sky is the limit as we work toward addressing every stage of a woman’s journey.
Tech in Action
Experience Fibra’s app with real-time graphs and continuous data tracking — so you can clearly understand patterns, not just track them.
Customer Experience
Fibra combines a seamless app with a discreet wearable — empowering women to confidently monitor their health and make informed decisions with real-time, personalized insights.
Revolutionizing women’s health, one category at a time
Move beyond apps and ovulation kits — Fibra replaces outdated tracking with continuous, real-time insight, offering a more accurate, effortless, and non-invasive solution.
Exceptional 4.9/5
Ready to take control of your cycle with comfort and confidence?
Pre-order your Fibra smart underwear now — trusted by experts, loved by women.
Built on research. Backed by real data.
At Fibra, we are relentless in advancing the science of women's reproductive health. Through rigorous research and close collaboration with the scientific and medical communities, we develop pioneering technologies that provide precise, data-driven insights to empower women worldwide.
Fibra is ISO 10993 (biocompatibility and chemical safety), IEC 60601 (electrical safety), and PIPEDA (Data Privacy) Compliant. Click here to learn more.

Fibra and researchers from Toronto Metropolitan University are collaborating on refining yarn-based sensor technology, with particular emphasis on sensor fabrication and validation to enhance precision and reliability in physiological data tracking.

Fibra is collaborating with researchers at York University to develop advanced biosensors for biochemical health monitoring, optimizing sensor fabrication, validation, and data collection to improve real-time physiological insights.

A joint research initiative is driving innovation in biophysical textile-based sensors, rigorously validating their performance while ensuring optimal user comfort and functional integration.

Researchers are enhancing the Fibra smart underwear’s product functionality, ensuring seamless integration into daily wear while maintaining a sleek, user-friendly design that merges technology with modern aesthetics.

In partnership with George Brown College, Fibra has refined its wearable technology, engineering a sophisticated, fashion-forward cotton underwear that seamlessly blends advanced sensor technology with elegant, flattering underwear design.

Fibra partnered with researchers at Durham College to validate its predictive models, sensor accuracy, and machine learning algorithms, advancing fertility tracking precision and elevating data-driven insights in women’s health.

In partnership with the University of North Dakota, Fibra has advanced its predictive modeling capabilities—refining algorithms that interpret physiological signals to deliver more accurate, real-time reproductive health insights

Collaborating with researchers at the University of Toronto, Fibra has conducted rigorous product validation to ensure accuracy, reliability, and performance across real-world wear conditions.

Working alongside NC State University, Fibra has driven product development forward—optimizing textile integration, sensor performance, and overall system design to enhance both functionality and user experience.
Exceptional 4.9/5
Stop guessing. Start knowing.
Fibra gives you real-time insights, comfort, and peace of mind — all in one wearable.
Disclaimer: “If your non-identifiable data are used for research purposes, then the limitation of liability and indemnity clauses contained within the End User License Agreement/Terms of Service Agreement are waived with respect to any harms suffered or liabilities incurred as a result of any research activities”