Summer Palace x Li-Ning Feidian 6 ULTRA Red ARMW005-31 - Elite Marathon Racing Shoe Unisex
Li-Ning Feidian 6 ULTRA — Built to Break Records
The Feidian 6 ULTRA is Li-Ning's most advanced super shoe, engineered for elite athletes chasing personal bests across distances from 5K to the full marathon. Released in early 2026, it introduces the Quad-Core Power System — a convergence of four cutting-edge technologies that redefine what a racing flat can deliver.
Midsole: Super Boom Capsule
At the heart of the Feidian 6 ULTRA is a high-response PEBA foam encapsulated in a membrane, delivering a claimed 95% energy return rate and a rapid 3ms rebound response. The result is a ride that reviewers describe as exceptionally soft, bouncy, and propulsive — a noticeable step up from the firmer Feidian 5 Ultra.
Carbon Plate: T1000 Dual-Bow
A high-strength T1000 ejection-type carbon fiber plate with an aggressive dual-bow geometry amplifies forefoot propulsion and stores energy through each stride cycle, giving you that signature "wild and fun" snap at toe-off.
Upper: Boom Fiber Tech
An AI-designed jacquard weave upper improves breathability by approximately 35% over previous iterations, keeping your feet cool and locked in through the final miles when it matters most.
Outsole: GCU Rubber System
The Ground Control Unit rubber outsole delivers enhanced grip and durability, with particular strength on wet surfaces — so race-day conditions won't slow you down.
Weight & Geometry
- Weight: ~220g (US 10.5)
- Stack Height: ~40mm heel
- Drop: 6mm
Best For
Optimized for marathon distances, the Feidian 6 ULTRA is more forgiving than shorter-distance racers as form fades late in a race — making it the ideal choice for athletes targeting a PR on the big day.