Li-Ning Feidian 5 Challenger Trainers - White

These are professional-grade trainers. While usable by anyone, they are engineered specifically for high-performance speed training and marathons.

No, the Feidian 5 Challenger is optimized for road and track. The outsole is not designed to handle technical, uneven trail terrain.

The carbon plate acts as a lever, providing superior energy return and assisting with propulsion, which is critical for marathon speeds.

Use a damp cloth and mild soap to spot-clean the upper. Never put them in the washing machine or dryer.

The fit is consistent with standard professional athletic sizing; however, always measure your feet in the evening when they are naturally slightly more swollen for the best fit.

Utilize the runner's loop (heel lock) lacing technique to secure the ankle collar against your heel.

Ensure you are rotating the shoes; carbon-plated foam requires time to decompress after heavy exertion.