The new Slingshot OSS (OverSize Slingback) is an extension of the highly-acclaimed Slingshot, which was awarded the 2004 Iron of the Year by Golf Digest. Nike Golf engineers have shifted the center of gravity lower and deeper in the Slingshot OSS to take forgiveness to a whole new level and make it easier to square the clubface.

• Center of Gravity:
  
  Nike Golf has moved the center of gravity further beyond the face, resulting in Air CG+ by deepening the slingback design, widening the dual glide sole and incorporating a lighter, hotter cryo steel face. The Slingshot OSS boasts a center of gravity position that is well beyond the thickness of the clubface, making it easier to hit the ball higher, longer, more accurately and with softer-landing shots.
  
  29 grams of saved weight have been placed further back in the clubhead's new oversize slingback, as well as lower in the wider dual glide sole. All of this combines to enhance perimeter weighting and increase the MOI, which helps resist clubhead twisting on impact for more forgiveness.
   
• Cryo Steel:
  
  The cryo steel clubface is thinner, stronger and creates a hotter ball speed than conventional stainless steel. A robotically controlled laser weld maximizes the cryo steel faceplate size to create a large, more responsive sweet spot.
   
• 3-D Flow Weighting:
  
  Through 3-D flow weighting, the Slingshot OSS irons have weight strategically and uniquely distributed in each clubhead. Long irons have weight concentrated low, rearward and in the heel to help you square the clubhead and get the ball airborne. As the club numbers increase throughout the set, the slingback design incrementally shifts higher and toward the toe to precisely calibrate trajectory and spin rat. This prevents shots from ballooning while maintaining the ability to hold greens.
   
• Dual Glide Sole:
  
  To assist in delivering crisp, authoritative shots, the dual glide sole has been engineered to provide the clubhead with smooth flow through the impact zone. The wide constant sole width of the Slingshot OSS irons makes it easy to get the ball airborne and increase the effective bounce to help prevent digging and "fat" shots. The beveled trailing edge of the sole reduces turf drag and the risk of thin shots.
   
• Shaft:
  
  The iDiamana-cw Light/Constant Weight Graphite Shaft by Mitsubishi Rayon is made for each numbered clubhead and maintains the same static weight throughout the set (lightweight - low to mid 70 grams depending on flex). This specifically tuned shaft provides optimum tip flexibility, stability and trajectory and increases clubhead speed.