KYMIRA Ltd.

KYMIRA Ltd. is a British smart-textile company based in Reading, United Kingdom, that develops wearable technologies designed to help people perform, recover and live better. Rather than selling devices or treatments, KYMIRA embeds advanced infrared technology directly into clothing that people already wear every day, aiming to deliver continuous support and continuous physiological intelligence through garments. Its product range spans performance sportswear, recovery wear and sleepwear, marketed under the idea of "Infrared Enhanced Human Performance & Recovery Wear." The company was founded in 2013 by Tim Brownstone, a former athlete studying biochemistry sciences. After an injury during competition, Brownstone began exploring technologies that could accelerate recovery and support the body's natural physiological processes. Research published by NASA on using infrared light to grow plants faster in space sparked the idea that infrared light could stimulate human cell growth and accelerate cell performance and healing. Following roughly five years of academic research that helped develop the underlying technological textile, Brownstone founded KYMIRA to bring infrared fabric and its scientifically proven benefits to market. KYMIRA positions itself around clinical validation. Its official site states that the brand is backed by 10 peer-reviewed clinical studies, with 3 pending, plus a wider body of evidential research. It highlights a peer-reviewed study by the University of Notre Dame and claims of 15.9% better sleep with Kymira sleepwear. The brand also cites more than 25 industry award wins and was recently named a 2025 WIRED Trailblazer. Its marketing references use by elite sports organizations and teams, including England Rugby, the Philadelphia Flyers, the NFL, Women's Elite Football, the Premier League, MLB World Series, Tier 1 Rugby, and Team GB, whose athletes used KYMIRA infrared sleepwear at the Milano Cortina 2026 Winter Olympic Games. KYMIRA sells primarily through its own e-commerce website, kymira.com, and offers team programs through a "Trial & Buy for Your Team" route. It serves elite athletes, everyday consumers and health-focused customers, with applications in enhanced performance, recovery, sleep and thermoregulation. The company has also addressed international trade conditions for its customers, extending a US Tariff Amnesty into 2026 so that orders shipped to the United States carry no additional tariff fees. KYMIRA remains a privately held British company.

KYMIRA was founded in 2013 by Tim Brownstone, an ex-athlete studying biochemistry sciences. The idea emerged from his own experience: after an injury while competing, Brownstone began exploring technologies capable of accelerating recovery and supporting the body's natural physiological processes to speed his rehabilitation. He was inspired by research published by NASA about how infrared light was used to grow plants quicker in space, which sparked the idea that infrared light could stimulate human cell growth and accelerate cell performance and healing. Brownstone helped with the development of the breakthrough technological textile over roughly five years of academic research. He then founded KYMIRA to bring infrared fabric and its scientifically proven benefits to market. From the outset, the goal was not simply to create another apparel brand but to develop technologies capable of improving human performance, recovery and health in a way people could use every day. Because infrared technology can be embedded directly into textiles and worn continuously, KYMIRA positioned clothing itself as the delivery mechanism for continuous support and continuous intelligence. The company grew into a smart-textile business based in Reading, United Kingdom, selling performance, recovery and sleepwear products through its own e-commerce site. It built a clinical evidence base around its infrared fabric, stating that it is backed by 10 peer-reviewed clinical studies, with 3 pending, plus a wide body of evidential research. A peer-reviewed study by the University of Notre Dame is highlighted, along with a claim of 15.9% better sleep with Kymira sleepwear. The brand has accumulated more than 25 industry award wins and was recently named a 2025 WIRED Trailblazer. KYMIRA has cultivated visibility in elite sport. Its marketing cites use by England Rugby, the Philadelphia Flyers, the NFL, Women's Elite Football, the Premier League, MLB World Series and Tier 1 Rugby. Bob Stewart, Medical Lead for England Rugby, is quoted on the site saying there is nothing else like KYMIRA and that building the products into their regime gives their athletes something more. Team GB used KYMIRA infrared sleepwear across 55 athletes at the Milano Cortina 2026 Winter Olympic Games. Commercially, KYMIRA sells direct to consumers and offers a team program under "Trial & Buy for Your Team." It has also responded to shifting international tariff conditions; in late 2025 it announced that its US Tariff Amnesty would be extended into 2026, so orders shipped to the United States would carry no additional tariff fees. The company remains privately held and continues to develop its infrared textile platform across performance, recovery, sleep and thermoregulation applications.

• 2026

  Team GB used KYMIRA infrared sleepwear across 55 athletes at the Milano Cortina 2026 Winter Olympic Games.

• 2025

  Named a 2025 WIRED Trailblazer.

• 2025

  Announced extension of US Tariff Amnesty into 2026.

• 2013

  KYMIRA founded by Tim Brownstone.

Clinically proven infrared-enhanced human performance and recovery wear for elite athletes and everyday consumers.

• KYMIRA Infrared Garments

  Infrared-enhanced garments clinically proven to boost recovery.

• KYMIRA Infrared Sleepwear

  Sleepwear claimed to deliver 15.9% better sleep.

• Team Trial & Buy program

  Program allowing teams to trial and buy KYMIRA infrared products.

1. 1Kymira - Infrared Sportswear & Sports Recovery – KYMIRAkymira.com
2. 2About KYMIRA® | Human-Centered Infrared Technology for Performance & Recoverykymira.com
3. 3US Tariff Amnesty Extended into 2026 | KYMIRA Infrared Performance Gearkymira.com
4. 4KYMIRA Ltd. (United Kingdom) - Wikidatawikidata.org