The Callaway Rogue X irons are distance monsters, made to hit the ball high and far. Check out how the irons accomplish that here.
360° Face Cup and VFT Face

Callaway's 360° Face Cup on the Rogue X irons is a rim around the face that flexes at impact, increasing ball speed and distance.
Variable Face Thickness (VFT) also gives these irons more ball speed. The face is made thinner around the outside, boosting distance on off-center hits by flexing more at impact.
Internal Standing Wave

Behind the face of the Callaway Rogue X irons is an Internal Standing Wave made with tungsten. Using tungsten allows designers to optimize the CG location on each iron, giving ideal launch conditions.
Urethane Microspheres

To improve the feel of the Rogue X irons, Callway uses Urethane microshperes to dampen any vibrations. The microshperes also accomplish this without hurting COR or ball speed.
The Callaway Rogue X irons are also lighter, longer, and have stronger lofts. These traits, combined with the features above, make these irons a distance machine.
The chart below has the stock specifications for the Rogue X irons.
