Urethane microspheres at heart of new Callaway irons

Carlsbad, California – The new Rogue Irons and Rogue Hybrids from Callaway include novel polyurethane microsphere technology. The company claims this improves sound and feel, without compromising coefficient of restitution (COR) or ball speed.

Polyurethane is used to counteract the excessive vibration that can occur when a club has a thin face that is designed to give faster ball speed and more distance. However, the polyurethane can reduce the ability of the face to flex, reducing COR and ball speed.

‘Our elastic-urethane microspheres provide the sound and feel benefits of urethane without compromising COR or ball speed,’ Callaway claims. ‘To have tremendous ball speed and feel together is a huge achievement.’