Most Drivers have one flex zone. Rebound Frame has two. Like a spring within a spring, Rebound Frame elevates COR across the face for increased ball speed. And that extra ball speed leads to more distance off the tee.
DUAL FLEX ZONES
Here’s how it works: Like any modern Driver, the speed of ZX Mk II starts with a flexible face—and our Driver face is especially fast thanks to its advanced Ti51AF Titanium alloy construction.
The similarities end there, though, because Rebound Frame adds a second flexible zone, a ring of thin titanium in the body of the Driver. When these two zones flex simultaneously at impact, then snap back into shape, their compounded energy transfer is far more powerful than single-flex designs.