Fei Huo st adopts EVA supercritical physical foaming process, shovel-shaped carbon fiber board, professional ETPU yarn upper, and the inner side of the shoe is specially glued, and the materials are very good, so the Fei Huo st upper is not easy to break.

Feiran st's soft foot feeling and good rebound are not only suitable for mass runners, but also very good daily training running shoes for elite runners.