Tennis Warehouse
IPS (I.P.S. System)

By inserting extra weight at the three and nine o'clock positions, a greater "moment of inertia" is created on the face of the frame, reducing torque (twisting) and increasing overall frame stability.
Yonex IPS System

Yonex RQiS 1 Tour XL 100 Racquets

Yonex VCORE Tour G 310 Racquets
$199.00

Yonex VCORE Tour G 330 (Wawrinka) Racquets
$199.00