Li-Ning Jimmy Butler 4

(JB4) Series

The Li-Ning Jimmy Butler 4 (JB4) marks the next chapter in the signature line for 6x NBA All-Star Jimmy Butler. Designed for the "Silent Dominator" who demands relentless performance and grit, the JB4 transitions with Butler into his new era in the Bay Area. Launched in Q4 2025, this 4th iteration is engineered for aggressive wing players who prioritize explosive verticality, surgical cuts, and unbreakable defensive stability.

Key Performance Technologies

Carbon Core Drive System

A groundbreaking midsole architecture that integrates a full-length Li-Ning Boom (䨻) nitrogen technology with an encased Carbon Fiber Plate. This system is lab-tested to boost vertical jump height by approximately 3.8% to 4.1%, providing industry-leading energy return.

3D IBR Lock-Down Upper

Utilizing a unique three-piece IBR (Injection Breathable Rubber) frame, the JB4 delivers an "octopus-like" wrap. This 3D-molded skeleton balances lightweight flexibility with extreme lateral containment, ensuring your foot stays locked in during high-intensity drives.

GCU Ground Control Outsole

The full-length GCU (Ground Control Unit) outsole features a specialized "Thorn" traction pattern. This material offers 13% better slip resistance on wet surfaces and 5% higher durability compared to traditional rubber, providing unshakeable grip on both indoor and outdoor courts.

Signature Colorways & Storytelling

  • "Thorn Path" (Silver/Black/Purple): A tribute to Butler's journey of overcoming adversity. The purple thorn motifs represent the "scars" of his career, while the silver-black base reflects his calm yet resilient exterior.
  • "Bay Area Blade" (Warriors Edition): Inspired by the energy and grit of San Francisco, this colorway celebrates Butler’s move to the Golden State Warriors with a sleek, aerodynamic aesthetic.
  • "Dark Knight" (All-Black): A fan-favorite premium edition featuring a "Silent Dominator" stealth look with high-gloss finishes and ultra-premium materials.
  • "Red Shadow" & "Blue Devil": Vibrant, high-visibility options featuring reflective detailing for players who want to stand out during night runs.

Product Specifications

  • Weight: ~387g (Size US 10.5) – Optimized for lightweight agility.
  • Materials: Textile, Synthetic Leather, and TPU reinforced upper.
  • Recommended Player Type: Explosive wings, slashers, and defensive anchors.
  • Release Date: Initial rollout November 2025; "Bay Area Warrior" limited edition January 20, 2026.
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