We see possibility within every fiber.

Co-founders Tosha Hays and Mary-Cathryn Kolb launched Brrrº in 2014, after carving their careers in the fashion and textile industry building global, billion-dollar brands.

Together, Hays and Kolb developed the proprietary textile technology behind Brrrº, working with a team of investors and strong manufacturing partners. Brrrº has since developed seven trademarks, been featured on QVC, and was Winner Decoded Fashion in Milan. In 2016, Brrr was awarded Top 20 Most Innovative Companies in Georgia.

Our Team

Mary-Cathryn Kolb

Chief Executive Officer and Co-Founder

A leader in the retail industry for the last ten years, Mary-Cathryn began her career under the guidance of Christian Audigier and the Von Dutch brand. She continued to develop her sales and business expertise through the early stages of Seven7 Jeans. In 2008, she collaborated with Blake Mycoskie of TOMS Shoes to help him launch the company as his first hire. Joining SPANX in its early years, she became Director of Sales and helped grow the company by developing strategic, company-wide initiatives, projecting sales volume and profits, and reaching sales quotas.

Aspiring to lead a fabric revolution, Mary-Cathryn’s goal is now being realized through Brrrº and its partnerships with MIT’s AFFOA and the University of Georgia.

Tosha Hays

Chief Innovation Officer and Co-Founder

Tosha’s career spans 20 years in the consumer soft goods industries. Prior to founding Brrrº, she was the Senior Director of Product Design for SPANX, where she led all aspects of product development and innovation. In 2001 she founded Tosha Hays Couture, specializing in bridal apparel and children’s special occasion wear, serving customers like Saks Fifth Avenue and Takashimaya.

The engineer behind Brrrº’s proprietary fabric, Tosha has advanced technical expertise in fibers, textiles, pattern making, draping and garment design. In 2013, she won the University of Georgia’s 40 Under 40 Award for alumni excellence. Tosha is currently the first female trustee for the University of Georgia’s Soft Goods Foundation Board and a proud member of AFFOA, Advanced Functional Fabrics of America, where she is leading the next revolution in fibers.


Bob Kavner

After graduating from Adelphi University in 1965, Bob joined Price Waterhouse & Coopers, and ten years later he was admitted to the partnership of the firm. At PWC, his clients included AT&T, CBS, Dun and Bradstreet, Museum of Modern Art, Metropolitan Museum of Art and Columbia University. In 1984, Bob was recruited to be CFO of AT&T and four years later became President of AT&T’s computer business. He was promoted to be CEO of the Multimedia Products and Services Group where he was responsible for the leadership for AT&T’s business units, providing digital services and products.

In 1994, Bob left the corporate world to pursue a career as an entrepreneur in technology start-ups. Collaborating with other entrepreneurs, Bob was part of the creation of Idealab, a leading technology incubator, and has been Chairman of a number of start-ups that grew to become public companies. They include Citysearch, Overture (now a major component of Yahoo), Earthlink Networks and Pandora Media. Bob joined Brrrº’s Board in 2016.

John L. Dunham

After a thirty-year career with May Department Stores, John retired in 2006 as President, Chairman and CEO. May’s annual sales exceeded $14B and operated under 12 regional department store trade names across the country including Lord & Taylor, Filene's, Marshall Field's, and Robinsons-May. He worked in five of May's retail department store divisions; serving as Chairman of two of them. John was also Chairman of the product development and international sourcing division. He joined the May’s corporate staff as Chief Financial Officer, subsequently became President and finally President, Chairman and CEO. He was elected to May's Board in 1997 and joined Brrrº’s Board in 2016.

John is a 1968 graduate of the United States Air Force Academy and served as an Advanced Jet Instructor Pilot in the Air Force. He also completed the Stanford Executive Program (SEP) in 1983. He and his wife Jane Beadles reside on the Georgia coast where he continues to pursue his interest in aviation.

Shannon Offen

An investor and advisor to Brrrº since its inception, Shannon is currently a Director in the Industrials Investment Banking group with SunTrust Robinson Humphrey. Prior to SunTrust, Shannon spent her career at Citigroup out of NYC in the Energy Investment Banking, Debt Capital Markets, and High Yield Loan Trading groups. At Citi she was appointed the head of various committees and teams, including the DCM Compensation Committee, and was nominated for the Women's Leadership Development Program. 

Shannon is also a leadership advocate for the OnBoard, Inc. organization which is the leading catalyst for the identification and placement of women in the boardroom for Georgia based companies. She graduated from the University of North Carolina at Chapel Hill with degrees in Chemistry and Public Policy, which included the London Honors Program. She is based in Atlanta with her husband and four children.
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Interested in licensing our textile technology? Our fabrics are endlessly versatile, bringing cooling innovation to the materials of our lives. We'd love to partner with your brand.

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