A slightly rounded toe shape and wider area in the front of the shoe improve traction and comfort while foam sockliners mold to your feet for improved fit. The Sport BOOST 3 is also built with an “Energy Sling” design that helps direct energy transfer more efficiently.
But when the company introduced the JPX line a few years back some questioned the look of the matte finish and where the new sticks fit in with the vaunted MP line.
In addition a Crown Step design lowers the CG allowing for improved launch characteristics. The Z F85 comes standard with a Project X HZRDUS Red 65 shaft and is available in 13.5° 15° and 18°.