Taking the high level of support and comfort that has been trusted by Kswiss's pro tour players, the KSwiss Ultrashot 4 has an even more stable foundation, and plusher cushioning than before. An all new 360 degree plantar support chassis has been added to supply a stable feel on court, that competitive players need when pushing-off and changing directions. The midsole cushioning is equipped with even more bounce and energy return, which helps players like Frances Tiafoe move with power and explosiveness! Our playtest team has always been a fan of the comfort of the Ultrashot line, however these shoes haven't always been the most breathable, and with this 4th edition KSwiss maintains the support and adds a lot of ventilation. The combination of Aosta 7.0 rubber and Dragguard 7.0 in high wear zones will provide the durability needed for players who put in the hours, and the traction is ideal for hard courts, but can perform well on a variety of surfaces.