The new Yonex Ezone DR Feel upgrades itself from the successful Ezone Ai Feel which combined a lightweight frame with innovative power and comfort features to produce a solid playable stick for beginner to intermediate level players and juniors graduating to their first adultsize racquet The Ezone Dr Feel continues to sports several new technologies to improve comfort and racquet speed The new Nanometric DR material provides more flexibility and resilience to the frame to provide a faster frame snapback for improved ball speed while the Oval Pressed Shaft offers increased flex and stability for added spin and control Not to be outdone in the comfort area Yonexs Dual Shut System places shockabsorbing material in the throat and side grommets and grip to reduce shock by 50 over traditional frames Adding to the comfort that this series is known for is Quake Shut Gel which is a unique material designed to filter out unwanted vibrations in the frame before they reach your hand Isometric Technology varies the depths of the grooves at the sides and tip of the frame to improve ball pocketing and shot response resulting in a 7 larger sweet spot over traditional roundheaded frames It also produces a stronger shot response on balls hit higher on the face just where modern players tend to make contact