Developed following extensive testing with our top tour pros to meet their “must haves” -- control and precision -- Blueprint S delivers the score-lowering performance demanded by the best players in the world.
Features:
Fully forged 8620 carbon steel head 
Patented precision-pocket forging in 3-5 irons saves 10g to increase forgiveness
Elastomer insert in the forged pocket ensures a solid feel and sound in 3-5 irons
Compact shape with thin topline, minimal offset 
Tungsten toe screw and shaft tip weights for swing weight fine tuning
Same standard lofts as Blueprint T, i230 to allow for blended sets
Hydropearl 2.0 chrome finish