Wilson Ultra 100 V4 Ultra 100 v4 heralds a new generation of Ultra with superb style and refreshing performance. Thanks to a new construction and a new geometry, this racket plays unlike any Ultra before it. Highlighted by the integration of FORTYFIVE° into the lay-up for a softer, more comfortable feel along with improved stability, this frame upgrades the delivery of easy power to its users. Key geometric updates include an extended Sweet Spot Channel at the tip of the hoop for extra power and reduced bulk in the beams for a sleeker, more aerodynamic look. In terms of appearance, this racket has no rival: color-shifting blues dance to the different angles of sunlight deflecting off the racket surface for a dazzling display.