Nicklaus claims its has taken its Polarity MTP irons and made them even better, to produce the Polarity HTC. The patented Extreme Polar Weight System has distributed the clubhead weight deeper, with a view to enhancing ball velocity and trajectory. The Polar Weight also resists twisting at impact. Shaft options are FST Pro Silver Ultra Light steel, Precision Rifle Black Graphite, and Nicklaus SG Pro 3.01 Ladies.