Skip co-founder Kathryn Zealand holds the first functional prototype of the startup’s wearable tech at its San Francisco labs.

Skip co-founder Kathryn Zealand holds the first functional prototype of the startup’s wearable tech at its San Francisco labs.

Photographer: Gabriela Hasbun for Bloomberg Businessweek

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If there were an aptitude test to qualify for a job at X, Alphabet Inc.’s renowned research lab, Kathryn Zealand would ace it. She’s a McKinsey & Co.-trained entrepreneur who abandoned a Ph.D. in theoretical physics to build startups in sub-Saharan Africa. In her spare time, she climbs California’s tallest mountains while bingeing sci-fi audiobooks. She joined X in 2018, and for the past five years, she’s dedicated her life to building an exoskeleton.

On a recent afternoon in San Francisco, Zealand donned a prototype of her product, a mechanical system designed to enhance a person’s musculoskeletal abilities. This early version is a belt studded with wires, actuators and sensors that’s not particularly fashionable.