Ultrashot 4 Clay

The Ultrashot 4 is the ultimate evolution of the most worn shoe on the ATP and WTA tours. Surge 7.0 maintains premium energy return on the tour's most physically demanding surface, the CRBN Winglet amplifies push-offs during aggressive slides, and the Aösta 7.0 clay herringbone outsole delivers high-level durability and traction on clay. For players who want to play like the pros on the most technical surface.

• 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 clay herringbone outsole: Premium Aösta 7.0 with aggressive herringbone pattern optimized for clay court traction, controlled sliding and exceptional durability.
• 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