Ultrashot 4

The Ultrashot 4 is the ultimate evolution of the most worn shoe on the ATP and WTA tours. The Surge 7.0 midsole delivers unmatched energy return in tennis — at every step, energy is stored and released to propel you toward the next ball. The custom graphite Carbon Winglet unlocks lateral movements and amplifies propulsion with secured stability. The improved Aösta 7.0 outsole guarantees grip, traction and durability. Crafted for those who seek peak on-court performance.

• Synthetic leather + textile upper: Hybrid construction combining synthetic leather overlays with textile panels for a balance of support and breathability.
• CRBN Winglet: Custom molded carbon fiber winglet at the forefoot — stores lateral energy and releases it at push-off for enhanced propulsion.
• Surge 7.0 midsole: K-Swiss premium lightweight cushioning platform for maximum energy return — stores impact energy and releases it at every push-off.
• Molded EVA footbed: Molded EVA insole that conforms to the foot profile, providing personalized underfoot cushioning and arch support.
• Aösta 7.0 outsole: Improved K-Swiss high-density non-marking rubber with enhanced grip, superior traction and reinforced abrasion resistance.
• Lace closure: Traditional lace fastening system for a secure, adjustable fit.
• Non-marking outsole: Outsole formulated with a non-marking compound to protect indoor court surfaces from scuff marks.
• Changeable Insole: Removable footbed that can be taken out for cleaning, faster drying, or replacement with a custom orthotic insert.
• Toebox width: 91.7mm for a size 42
• Drop: 10mm