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Exceptional 4.9/5

Struggling with irregular cycles or PCOS? Fibra makes it easy to track and manage your fertility — try it now!

Dr Milan Charvakar
Dr Milan CharvakarFounder, Lotus Integrative Health
Fertility is a complex puzzle. Diet, stress, movement, toxins, hormones, they all matter. When we address each piece, that’s when we start seeing incredible outcomes. That’s why I love what Fibra is doing with cycle and temperature tracking, it brings the full picture into focus.
Teresa Maoirano | Fertility Nutritionist
Teresa Maoirano | Fertility NutritionistFounder, Live and Love Nutrition
The fertility journey is stressful and often invasive, from medication to needles. That's why I believe Fibra will help alleviate both the physical and mental stressors, allowing women to feel like it’s just a natural part of their day rather than another burden to manage.

Slip It On. Sync It. Go About Your Day.

Exceptional 4.9/5

That’s it! Your reproductive data updates in the background while you live your life.

Fibra’s smart underwear seamlessly connects to your phone through the Fibra app, giving you real-time, personalized insights into your cycle. No extra steps, no disruptions.

Head to our How It Works page for the full breakdown.

Empowering your Fertility and

Reproductive Health Journey

Fibra is your best friend during your trying to conceive (TTC) journey, offering more than just ovulation tracking with our patent-pending technology

A non-invasive wearable device (smart underwear), using cutting-edge, proprietary textile and yarn-based sensors to monitor your biomarkers and give you the most accurate fertility data, maximizing your pregnancy chances every single month in the most hassle-free and convenient manner

More Than Two Million Data Points Collected to Date!

Exceptional 4.9/5

20 +

Years of experience

2 k+

People waitlisted for the product

2 M+

Data collected to date with the product

FIBRA X RADIO-canada interview

Check out Fibra founder Parnian in her interview with Radio-Canada of the CBC

*Owner of the video is the CBC

Revolutionary Wearable Comfort with Cutting-Edge Features

Discover ultimate comfort and innovation with our yarn-based wearable. Made from 90% natural fibers, it offers 4 days of battery life, 24/7 wearability, and seamless app connectivity—all while being safe, non-allergenic, and stretchable.

Features to be included:

Exceptional 4.9/5

4 days of battery life
90% cotton and natural fibers
Comfortable for 24/7 wear
No hardware electronics… everything is yarn-based!
Non-allergenics (explanation: we are OEKO-TEX and ISO 10993 compliant)
Safe (we are IEC 60601 compliant)
Fibra combines ultimate comfort and stretchability with real-time tracking, offering seamless biomarker monitoring for a comprehensive view of your reproductive health.

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

Step 1: Wear It. Snap It On.

Start your day by slipping into your Fibra smart underwear — designed for comfort, breathability, and all-day wear. Then, attach the small but powerful detachable electronic unit (a.k.a. The Brain) to the discreet magnetic connector on the waistband. It’s sleek, secure, and built to move with you.

Step 2: Pair It With Your Phone.

Open the Fibra app and connect your underwear to your phone via Bluetooth in just a few taps. Once paired, The Brain seamlessly syncs with the app — no tech skills needed. From here on out, your underwear becomes a personal wellness companion, quietly working in the background.

Step 3: Live Your Life. We’ve Got the Data.

Go about your day while Fibra does the heavy lifting. Whether you're sleeping, working, or just relaxing, the underwear continuously collects and analyzes your body’s signals. In real time, the Fibra app delivers personalized insights into your reproductive health — like cycle trends, ovulation predictions, and more — all without you lifting a finger.

Smart Wearables for Personalized Reproductive Health

Quality management

● Modified and unmodified conductive yarn

● Conductive polymer

● Seamless and comfortable integration within the underwear

● Biocompatible and non-allergenic polymer protection

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

● Proprietary yarn based heart rate monitoring your heart rate and heart rate variability 24/7

● Proprietory yarn-based skin temperature sensors monitors your temperature variations

● Proprietary and novel yarn based volume and pH sensors monitors the volume change of vaginal discharge and pH of vaginal discharge in the most non-invasive and comfortable manner.

Connectivity

Bluetooth Low Energy

Seamless & Comfortable Wear

Biocompatible, allergen-free materials ensure a smooth, comfortable fit integrated within everyday underwear.

🏆 Why Choose Fibra?

🔹 1. Comfortable, Non-Invasive Wearable

Smart underwear made with 90% natural fibers — soft, breathable, and stretchy. No hard gadgets or patches — just slip it on like regular underwear. OEKO-TEX®, ISO 10993, and IEC 60601 certified — safe and non-allergenic.

🔹 2. Real-Time Fertility Insights — No Manual Logging

Advanced sensors track heart rate, temperature, pH, and volume changes. Syncs with the Fibra™ app via Bluetooth Low Energy. You get instant cycle predictions and reproductive health insights without lifting a finger.

🔹 3. Trusted by Experts, Backed by Research

Recommended by nutritionists, physicians, and researchers. Featured in CBC Radio-Canada and praised for its innovation. Over 4 million data points collected from real users — and growing.

Why we are better than others

Packages

Real time fertile day detection

Convenient

Period prediction

Insight on sleep & stress

Mess-free

Reusable

Ava Fertility

5

LH stick

1.8

Temperature

0

Tracker app

0

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Frequently Asked Questions

Fibra™ smart underwear uses proprietary yarn-based sensors to monitor key reproductive health metrics like heart rate, skin temperature, vaginal pH, and volume changes. This data is seamlessly integrated into the Fibra™ app for real-time tracking and analysis.

Fibra™ tracks heart rate variability, skin temperature, vaginal pH levels, and changes in vaginal discharge volume, offering comprehensive insights into your reproductive health.

Fibra™ is designed with cutting-edge, patent-pending technology, providing highly accurate fertility insights backed by rigorous scientific research and testing.

While wearing Fibra™ throughout the day is recommended for optimal data collection, you can choose to wear it during specific times to align with your fertility tracking needs.

Fibra™ smart underwear is made with durable, high-quality materials. It is machine-washable using gentle settings, ensuring convenience and longevity. Detailed care instructions are provided with the product.

Is my fertility data stored securely and privately?

Absolutely. Fibra™ ensures your data is encrypted and securely stored. We prioritize your privacy and adhere to strict data protection standards, so only you have control over your information.

Yes, the Fibra™ app is essential for accessing and interpreting your fertility data. The app offers an intuitive interface for easy tracking and personalized insights.

The Fibra™ app is compatible with both iOS and Android devices, ensuring accessibility across a range of smartphones and tablets.

Fibra™ smart underwear features a long-lasting battery life of up to 4 days. It charges quickly and conveniently using the included USB charger.

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