Really nice to see this progress
https://www.google.com/amp/www.chron...w-11812107.php
This is a pretty good article on the technology of helmet and chin straps
https://www.google.com/amp/s/www.gee...in-trauma/amp/
And a little more on twelve teams ordering
https://www.google.com/amp/s/www.gee...ll-helmet/amp/
And startup company website
http://vicis.co
And good article about NFL and equipment manufacturers working on this together
https://www.google.com/amp/amp.timei...t%3fsource=dam