It's called Liquidmetal alloy - and it's unlike any other material ever invented. Liquidmetal alloy is a unique blend of titanium, zirconium, nickel, copper and beryllium that forms a near-perfect solid not available in other materials. Typically 2-3 times stronger than its conventional counterparts. Typically 2-3 times higher in resistance to permanent deformation than other conventional metals. Lighter than stainless steel but not as light as titanium, Liquidmetal alloy has a perfect mid-range density, providing club designers more freedom than ever possible.
Liquidmetal alloy feels significantly softer and more solid than titanium or steel.
The Liquidmetal alloy has a unique atomic structure that provides special properties. You may notice slight irregularities in the surface texture of the material, however, these do not affect the performance or quality of the club. On the contrary, it is these properties that help produce the best performing driver on the market today. In conventional metals like stainless steel and titanium, the atoms are aligned in recurring patterns. Weakened areas called grain boundaries are formed everywhere the patterns touch.