What we say...
This iron uses variable face thickness to boost ball speed and create a lower, deeper centre of gravity that, Nike says, makes for longer, straighter shots.
A redesigned cavity moves extra weight into the toe to shift the CG more in line with the centre of the face, compared to the VRS Forged.
Strong 450 stainless steel faces in the long irons (4-7) helps ball speeds, while the 8-iron down are made from softer stainless steel. Modified X3X grooves increase spin from a variety of lies by increasing the volume of each groove over the previous model.