PhD AERODYNAMICS
1. Super-soft, High Velocity Core
The softest core in the game today utilizes advancements in rubber chemistry to maintain high initial velocity.
2. HPF Speed Mantle
The speed-generating HPF mantle encases the low compression core to generate higher spin.
3. Thin, Responsive Ionomer Cover
A thin, responsive ionomer cover delivers soft feel with maximum durability and improved scuff-resistance.
4. PhD Aerodynamics
Large, flat-bottomed, shallow dimples deliver a stable, penetrating ball flight.
5. Traction Control Technology
On the mulitlayer D:25, traction control integrates with the thin urethane to generate the highest spin possible off of club faces with the 25 deg of loft or more for ultimate shot-making and scoring.
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