Product details:

Yonex overhauls the ISOMETRIC head shape by creating an even roomier, more luxurious hitting zone in the upper hoop. The payoff is a more forgiving and stable hitting experience, with an expanded spin window and juicier levels of power. Yonex has also recontoured the VCORE shaft and made slight tweaks to the beam throughout the frame. Other new features include SIF Grommets, which deploys a silicone oil infusion to reduce the friction between the string and grommet. The upshot is greater string movement for increased snapback and more vicious ball rotation. Yonex has also lowered the RA, giving this stick an even more buttery feel at impact. Like the previous generation, this racquet benefits from 2-NAMD FlexForce Graphite in the upper shaft and lower hoop, enabling the racquet to deflect and snapback effectively through impact. Ultimately, this redesigned VCORE 98 checks all the right boxes. Experienced players looking for spin, precision and feel should give this one a very serious look.Isometric: Isometric shaped frame to optimize the sweet spot and thus, the tolerance and power of the racquet.
Enlarged Frame Top: Enlarged racquet head at 2 and 10 o'clock for more forgiveness and to hit more interesting angles on the ball.
New Throat Design: A new core design for more stability and less power loss.