Cobra S3 Irons use E9 Face Technology; an advanced system that creates a larger Sweet Zone™ for increased distance and accuracy. Cobra has also introduced a new shape and design to the cavity back iron - Progressive Cavity Design. The new back-cavity shape and optimized face thickness progress from elliptical on your long-irons to circular on your short-irons. This design element works to optimize distance and feel based on typical golfer impact patterns. The Cobra S3 Irons also incorporate:
A high-strength steel and alloy composition in the long- and mid-irons allows for a thinner, hotter face for increased COR and ball speed.
New hidden internal polymer topline and full cavity TPU (thermoplastic urethane) combine to optimize weight distribution and dampen vibration for superior feel and distance.
A versatile mid-width sole narrows in the toe and heel to provide superior turf interaction to promote more consistent distance and accuracy.