ERKE Feiyi 2 "Swallow" Ultralight Carbon Plate Racing Shoes

Light as a Swallow. Fast as a Flash. The ERKE Feiyi 2 "Swallow" takes its name from the ancient Chinese word for swallow — 乙 (yǐ) — a bird celebrated throughout classical Chinese poetry for its speed, agility, and effortless grace. The shoe lives up to its name: ultralight, explosive, and built to carry you further, faster. The Feiyi 2 is a performance racing shoe for runners with a solid base and sub-5:00/km pace capability. The narrow last and soft heel counter are optimized for racing efficiency — beginners or runners with ankle weakness should consider an alternative model.

Specifications
Component    Detail
Upper    Lightweight high-strength woven mesh — secure lockdown, breathable, anti-tear
Midsole    Upgraded supercritical Qi technology foam — ~85% energy return
Forefoot Stack    29mm (+2.5mm vs previous gen)
Heel Stack    34.5mm (+0.5mm vs previous gen)
Drop    5.5mm
Carbon Plate    Biomimetic ejection-structure carbon plate — 3-phase force transfer (Decompression → Transition → Ejection)
Outsole    GPU ultra-durable rubber with 0.2mm gold reinforcement layer, key-zone rubber coverage
Weight    ~168g (Size 41) / ~182–183g (Size 43)
Last    Narrow — wide foot runners size up half a size
Colorways    White Dwarf (尔克白/正黑) / Fluorescent Pink-Purple / Dragon Soul (龙魂/微晶白/正黑)
Season    Summer 2026