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The new SFX 4 has never been truer to its name: Superior Fit eXperience. Every detail has been carefully considered to make the SFX 4 the benchmark for comfort and performance in tennis shoes. Read more.
Designed with an extended heel and wider width, this shoe offers softness, cushion, and stability with every movement.
Featuring a lightweight and breathable upper, the SFX 4 will revolutionize your tennis experience, whether you're practicing or playing long matches!
Discover the FIT experience with the new SFX 4. The SFX 4 is designed with a padded tongue, a breathable upper, and a larger width for an ultra-comfortable fit. The Ortholite insole, the thickest in our range, provides even more comfort on the court.
Since comfort is also synonymous with a secure fit, the rocker structure holds your foot firmly in place while inner straps envelop your midfoot, letting you move around the court with total confidence.
Whatever the angle of attack, the heel extension and rocker geometry protect the foot from impact with a consistent thickness of EVA foam under the heel for maximum, progressive cushioning.
The SFX size is designed for wider feet and has a generous amount of room in the forefoot. It is also ideal for players with standard foot widths who want a more comfortable shoe. (For standard feet, we recommend choosing a half size or even a full size smaller than your usual size.)
Three straps wrap around the midfoot to support and stabilize the foot during lateral movements.
The forefoot sits in a type of bucket support, so you can play with confidence when stopping or changing direction quickly.
The Ortholite® insole is the thickest in our range, for maximum comfort (60% thicker than the PROPULSE Fury 3). The insole is molded to the shape of the foot, and is made of 20% recycled foam from production line trimmings.
A heavy-duty molded rubber guard covers the inner forefoot and toes for enhanced upper durability.
