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Fibra launches Smart Underwear for reproductive health. Fibra Inc. will launch patented smart underwear on Oct. 20, using embedded sensors to passively track reproductive and fertility signals for women. October 15, 2026 Fibra Inc. founder Parnian Majd says the patented wearable aims to close gaps in reproductive-health data collection. The accompanying app provides the user with automated cycle tracking and ovulation prediction data, based on individualized metrics. Fibra Inc., a Toronto-based femtech startup, wants to help women monitor their reproductive health using "smart underwear." Pronounced "Feebra," the company is launching its patented product on Oct. 20. The wearable uses smart-textile technology to continuously track reproductive-health signals directly at the source, including vaginal pH and discharge patterns, along with skin temperature, heart rate, and heart rate variability. "Unlike conventional cycle trackers and wrist wearables," said Fibra founder and CEO Parnian Majd, "Fibra integrates sensing into everyday clothing to help women understand changes in their personal reproductive patterns without daily tests, invasive devices, or manual logging." The mission is to leverage data analytics, with the help of an app, to provide women with accurate and personalized fertility data in the most automated, non-invasive, and hassle-free manner, helping them conceive faster and more easily. While there are scores of wearable devices that track a wide variety of health-related factors, Majd said, there is no current method for real-time, non-invasive monitoring of reproductive health. Fibra's smart underwear provides automated menstrual cycle tracking and ovulation-prediction data based on individualized metrics. All of these data are collected passively through the smart fabrics and smart yarns the company has developed. For user comfort, much of its work over the past three years has gone into developing yarn-based sensors that sense and record key bodily factors, including skin temperature, vaginal discharge volume, and vaginal pH levels. Fibra holds seven patents in Canada, the US, and the European Union on this technology. The product is compliant with ISO 10993 (for biocompatibility and safety) and IEC 60601 (for electrical safety). For plastics processors, Fibra's product underscores a growing market opportunity in functional polymer composites and conductive-yarn manufacturing, where expertise in biocompatible materials, extrusion of conductive fillers, and flexible polymer-textile integration directly applies to wearable medical-device production. As smart-textile and wearable health technology continues to expand beyond consumer electronics into intimate apparel, processors with capabilities in polymer compounding, thin-film sensing substrates, and ISO 10993-compliant materials are well-positioned to supply this emerging femtech and medtech supply chain. Parnian Majd said she believes her product marks a shift from watches and rings to wearables that are closer to the biological systems they are designed to understand. Fibra has worked hard to ensure the product is not only technically accurate but also soft, flexible and comfortable to wear. Image courtesy of Fibra A long road. The Iran-born Majd is a 28-year-old biomedical engineer who moved to Canada in 2013. She earned a bachelor's degree from Toronto Metropolitan University and a master's degree from the University of Toronto. Her office is based at St. Michael's Hospital in Toronto. She started Fibra in 2022, and her company has since produced more than 10 product generations, studied more than 500,000 minutes of real-world wear, and tracked some 5 million physiological and biomarker data points. Fibra has worked in conjunction with gynecologists in Toronto and California; in these studies, researchers registered a 90 percent user-satisfaction rate. While its exact material formulations are proprietary, Fibra uses a combination of conductive yarns and functional polymer and composite materials integrated directly into the textile to sense reproductive and physiological signals. She offered insights in an email interview: "One of the key material systems in Fibra is a polyaniline-based conductive polymer composite used in our pH-sensing architecture. We also integrate conductive textile materials, including yarns incorporating stainless steel, silver, and carbon-based conductive elements, depending on the sensing and interconnect requirements." Because the product has to function as everyday underwear, Majd added, the material stack also has to balance electrical performance, flexibility, comfort, skin contact, washability, and durability. "A major part of our development has been optimizing how these sensing materials are integrated into textile structures without making the garment feel like a conventional electronic device," Majd said. Some of the exact formulations and material combinations are proprietary, but the broader goal is to use functional polymers and conductive textile composites to turn a soft, wearable garment into a sensing platform. Getting comfortable. "Much of the innovation," Majd said, "is in engineering the materials, textile structure, sensor geometry, and electronics together so they can continuously capture signals while remaining soft, flexible, and comfortable enough for everyday wear." Under Majd's leadership, Fibra has garnered significant attention, raising over US$1.5 million in an oversubscribed pre-seed round and attracting partnerships that enhance its market reach and credibility. Her efforts advocating for women's health have been recognized with several awards, including the 2024 Women Empowerment Award Finalist for Innovation by Rogers, the EY 2022 Women in Tech award, and a nomination for the 2023 DMZ Women of the Year award. Fibra calls its approach "continuous reproductive monitoring," collecting longitudinal reproductive and physiological signals during everyday wear and using those signals to help women better understand their changing reproductive patterns. Its premise can be summarized in one sentence, Majd said: "Continuously changing biology deserves more than occasional snapshots." Fibra's ambition isn't simply to build a smarter cycle tracker; it is to create a new reproductive-health data layer. Focused on the product's planned Oct. 20 commercial launch, Majd said, "PlasticsToday is bringing its first consumer product to market as smart underwear for passive, continuous reproductive health monitoring, starting with cycle health, irregular cycles, fertility, and reproductive wellness. "For launch, we're introducing a limited-time early-bird offer at 50 percent off, along with a promotion that includes two free pairs of Fibra Smart Underwear for a limited time. Our goal is to make the technology more accessible to our earliest customers while we begin scaling commercialization." After four years of development, the Fibra Founder's Edition is now available at myfibra.com. For the first 50 Founder orders, customers pay $99.99 for the detachable electronic unit and receive two Fibra smart underwear for free. After the first 50 spots are filled, Founder bundles range from $149.99 to $329.99, with free shipping and lifetime access to the Fibra app. "The broader story," Majd said, "goes beyond one product: Wearables are beginning to move beyond watches and rings and closer to the biological systems they're designed to understand, while becoming increasingly embedded into the things we already wear every day. Reproductive health may be one of the biggest opportunities for that shift." NOTE: In a 45-minute interview earlier this year with David Armstrong's YouTube channel, part of the Center to Stream Healthcare in Place (C2SHiP) Think Tank series, Majd elaborated on her efforts to date with Fibra and its wearable technology. Robert Grace is a writer, editor, and marketing communications professional who has been active in B2B journalism since 1980. After editing trade publications in London for seven years, he returned to the US in 1989 to help start the weekly Plastics News. Bob was PN's editor-in-chief for 25 years and also served as its associate publisher and conference director. In May 2014 he founded RC Grace LLC and has developed an active freelance business. Want more PlasticsToday in your search results?

Fibra raised $1.25M in a pre-seed round to advance fertility tracking smart underwear. Other highlights include Bone Index securing funding for bone health diagnostics, partnerships to expand digital menopause care, and a new study on AI in IVF. GE HealthCare and UC San Diego collaborate on pelvic imaging, and ENHERTU receives breakthrough therapy designation for certain breast cancer patients. Clue and Headspace support menstruator mental health, and Zepp Health introduces a women's wellness app.