Jimmy Butler 4 (JB4) Forged in Thorns

Thorns: Featuring silver and black outline, inspired by thorns; hard, harsh and against the trend.

The Jimmy Butler 4 is built for impact players who thrive in physical, high-intensity games. Inspired by Jimmy Butler’s defensive toughness, resilience, and uncompromising competitiveness, the JB4 delivers explosive responsiveness, secure lockdown, and confidence on both ends of the floor. 

Performance Technology: Forging Impact Instincts at the Line

Activated Carbon Core 

Engineered with a one-piece carbon plate and BOOM midsole “sandwich structure,” the JB4 delivers fast response, high thrust, and precise guidance. This setup creates explosive energy feedback for powerful drives, quick take-offs, and efficient power transfer when attacking the basket. 

Integrated 360° Wrap Construction A full-wrap footwear system combines toughness, strength, and containment. The integrated structure enhances stability and lockdown while maintaining flexibility for aggressive movement and physical play. 

Full-Foot GCU Outsole GCU (Ground Control Unit) all-weather outsole provides instant stopping power without slipping. Designed for extreme directional changes, it delivers reliable traction for attacking, defending, and quick transitions in both dry and wet conditions. 

Fit & Structure 

• 3D Upper with IBR Components Three Injection Blown Rubber (IBR) components create a lightweight yet durable upper with injected cushioning. Offers abrasion resistance, flexibility, and freedom of movement for high-intensity play. 

• 3D Footbed Snug, supportive fit with enhanced lockdown for stability and comfort throughout the game. 

• Carbon Core Impact System High rebound feel, excellent torsional resistance, and improved stability for fast cuts and lateral control. Design Details 

• Lycra Moulded Foam Tongue Full-wrapped, breathable, and comfortable with a metallic JB logo for a premium finish. 

• Heel IBR Component Features the JB logo silhouette, reinforcing durability and rear-foot stability. 

• Cross-Buckle Eyelets Silver gothic-cross inspired detailing, symbolising strength and fortitude. 

• Streamlined Silhouette Inspired by classic American industrial design, blending speed, power, and structure into a modern performance profile. 

• Thorn-Inspired Outsole Pattern Designed for grip, durability, and directional control. Technical Specs 

• Weight: 387g (US 10.5) 

• Outsole: Full-foot GCU (all-weather, non-slip, wear-resistant) 

• Cushioning: Full-length BOOM 

• Midsole Plate: Carbon Core 

• Support: 360° integrated wrap + IBR reinforcement