The Yonex VCORE PRO 97D Tennis Racquet gets a refresh just in time for the US Open with a vivid purple and green cosmetic. While the 97H is slightly heavier than this model, the 97D features a dense 18x20 string pattern for greater control and precision. Yonex added Flex Fuse technology with this update, which integrates a shock-absorbing polymer within the graphites resin for improved racquet flex and a softer feel. The new technology results in a thicker 21 millimeter cross section which produces more stability. To further establish the VCORE PRO as a control racquet, Yonex redesigned the shaft with the FLEXCON System; a tapered and elongated box-frame design for greater feel. Like the previous version, Vibration Dampening Mesh is wrapped around the graphite handle (beneath the grip) to filter out unwanted vibrations. Yonex` Flex Force graphite means the racquet can flex, but it snaps back quickly for greater spin and ball acceleration.The 97D is 11.3 ounces unstrung and it requires a player capable of producing fast and accurate swings. For fans of the previous generation, expect a little more punch from the new model, with the same buttery feel at contact. The 18x20 string pattern is a nice option if string durability is paramount.Features:-New Elongated shaft design puts the focus on control and precision-Just under 12 ounce strung weight means rock solid stability-Vibration Dampening Mesh means Comfort!-Flex Fuse adds shock absorbing polymer in the graphite for a soft feel-18x20 string pattern offers greater control than the 16x19 versions, not to mention longer lasting strings