F spring new jogging outsole MD + RB combination, the outsole lightweight non-slip easy to bend. A. Upper design flow sense modeling lines highlight the theme of the beast series. The use of TPU, printing and pressing to make the upper exquisite sense of quality, versatile black and white school color scheme in line with the children's mind. B. With the core knob to put on and take off freely, dual-density anti-mold antibacterial insole, soft elastic double, antibacterial and anti-odor.,Synthetic Knitted Fabric RB+MD Knitted Fabric+PuFoam