Head Sonic Pro 16G upc_616043169415 How To Select Size (Measurement

How To Select Size (Measurement is the thigh circumference in inches)

touch and feel

more powerful string in a hybrid

It can be worn on the right or left knee and easily adjusts to fit the contour of the patella and patellar tendon

and the outer molecular chains

Head Sonic Pro 16G upc_616043169415 How To Select Size (MeasurementSonic Pro, the newest string innovation from HEAD, is the ideal string for the new Extreme racquets. Made from an uniquely refined co polymer polyester with a soft molecular construction, the Sonic Pro string offers superior touch, extra pop and spin without sacrificing control. This exceptionally durable string offers excellent response and playability that will make a real difference in today's fast game.