Born from founder Federico Olivares’s 2010 determination to protect his son after a bicycle accident, Pittsburgh-based 2nd Skull makes thin protective skull caps and headgear designed to add impact protection beneath a helmet or worn alone. Its products use lightweight XRD® material that stays flexible during play but hardens under sudden pressure, and are made in the USA after testing at independent laboratories. The company’s headgear has also been developed for industrial workplaces, extending its original sports-safety idea beyond the field.