The 2016 JPX-EZ Hybrid has a larger sole and footprint than some other hybrids, and in turn produces a higher launch and softer landing.
The Shock Wave Sole has an expanded COR area lower on the club face, which promises increased ball speeds translating into longer distances.
The Massive MOI design includes a Shockwave sole that extends from the center of the sole to both the toe and the heel. This adds weight to increase the MOI and also helps to lower the center of gravity, which helps with forgiveness.
The JPX EZ has an extended footprint design and an increased head size across all lofts which adds confidence at address.