In my thesis work, made in collaboration with Sparco, will be explained the development of a safety harness for Formula 1, starting from the first prototype to the final product that will be used by two formula 1 teams: Alfa Romeo Racing and Mclaren. To develop a Formula 1 safety harness two targets must be achieved, one related to the homologation standard defined by FIA 8853-16 and one related to the Formula 1 market, indeed, to be competitive in this field the weight of the safety harness must be lower than 500 grams. In order to accomplish these two requirements, light and tough materials have to be used as aluminum and titanium, moreover, a deep research is needed for the webbing material in order to find a very light material but strong enough to absorb the high amount of energy developed during a crash.