This Yonex V Core Pro 97 G 310 - Matte Green is the Isometric head shape, which enlarges the sweet spot for more forgiveness on off-center hits. Yonex implements an Improved Throat Design, which combines a thinner and longer shaft with a lowered throat, resulting in more torque, dwell time, and spin-potential. The head-light balance is fast through the hitting zone, and the thin 20 mm beam adds a high level of mobility. It comes around with decent speed but still packs enough stability to comfortably redirect higher levels of pace. NAMD technology uses a flexible material that makes this racket extra responsive and the grommets have been enhanced for extra power through Lock Booster System. This racquet comes with a cover.