New technology and structure, combined with innovation, increase string elasticity and movement, giving players access to the greatest spin in Yonex tennis history. ISOMETRIC - Developed over 30 years ago, the ISOMETRIC™ design increases the pure hitting area by 7%. Compared to a conventional round frame, the ISOMETRIC™ racket creates a larger sweet spot by optimizing the intersection of the vertical and horizontal strings. ISOMETRIC™ technology provides greater control without sacrificing power.AERO FIN TECHNOLOGY - The aerodynamic fins found on the SV model have been improved and positioned on the lower part of the VCORE frame. The new Aero Fins feature strategically cut sections that allow for improved maneuverability.AREO TRENCH - To achieve higher head speeds for increased spin potential, the new Aero Trench reduces air resistance by hiding the grommets located on the top of the racket frame. SILICONE OIL INFUSED GROMMET - New silicone oil infused into the grommets allows the racket to flex and return to its original shape quickly.ENLARGED FRAME TOP - A wider frame at the 2 and 10 o'clock positions increases the contact area with the ball, resulting in a larger clean hitting area.NEW THROAT DESIGN - Torsional resistance helps stabilize the racket, reducing power loss.