Vicis,  a startup football helmet maker, closed another $6 million in funding, which completes a $10 million Series A round, according to Geekwire.

The report said more than 100 investors participated in the Series A round, including angels, neurological and spine surgeons, NFL players, and business leaders from across the country. Vicis previously raised $4 million of the round in April; it reeled in $8 million this past January.

Investors range from people like Roger Staubach, the 1963 Heisman Trophy winner and former Dallas Cowboys quarterback who led his team to two Super Bowl wins; to folks like Robert Nelsen, a biotech industry veteran and co-founder of Arch Venture Partners, and Bruce Montgomery, a veteran of the Seattle biotech scene.