These are Seattle Seahawks 12th Man Nike NDX Custom Logo Golf Balls (3 Pk Sleeve).
The Nike NDX Heat golf ball is a two-piece construction golf ball designed for more distance and durability. Its low-compression NDX core provides more response, and quick reaction for maximum energy transfer and more distance. The softened surlyn cover gives the player enhanced iron control and more feel with wedges.
•Core: high velocity core delivers more energy for long distance
•Cover: new softer formulation improves feel without sacrificing power
•Aerodynamics: High coverage design minimizes drag, maximizes length