Tecnifibre's Texalium Technology was developed by Hexcel it is an exclusive fibre mostly used in aircraft and spacecraft industries. The secret is its stiffness to mass ratio is exceptional and its specific weaving provides unprecedented power and resilience despite its light weight. The results, Texalium provides increased ball speed while maintaining outstanding feel. It's a fiberglass-basic fabric that has a proprietary finish and a thin coating of aluminum on the surface. The aluminum coating is 99.99% pure and approximately 200 angstroms in thickness (One angstrom is one billionth of a meter).