K-Swiss Hypercourt Express 2 Junior Tennis Shoe (White/Black) Size (US):6 Head Synthetic Gut PPS is

Head Synthetic Gut PPS is a solid core

and it's  amazing to see him still playing at such a high level

Progression II 602 and 602FC

Dunlop Australian Open Extra Duty Tennis Balls - 24 Can Case Details:

K-Swiss Hypercourt Express 2 Junior Tennis Shoe (White/Black) Size (US):6 Head Synthetic Gut PPS isThe Hypercourt Express is a lightweight tennis shoe designed for performance and comfort. Its upper is constructed with Seamfree technology, a state of the art heat welded seamless construction method that bonds layers of TPU onto breathable tech mesh for flexible support without stitching. On the inside, a well padded ankle collar provides comfort and stability while a die cut EVA sock liner adds responsive cushioning underfoot. The Hypercourt