Key Technology

1 Srixon’s Mainframe design comprises a variable-thickness pattern made up of grooves, channels and cavities milled into the back of each face for added ball speed.

2 The hollow construction aids forgiveness across the face. High-density tungsten in the head helps with launch by lowering the centre of gravity in the long- and mid-irons. 3 The ZX4 also has a forged HT1770 steel face which is strong and light, while the 431 steel body helps absorb vibrations for a softer feel.