F:Knob buckle easy on/off design, easy to adjust the instep elasticity. A:The exquisite TPU and seamless combination of the upper makes the upper light and thin but with a sense of quality, and the craftsmanship is concave and convex. B:POPO8.0 outsole soft and elastic performance is newly upgraded, dual-density sole material, midsole lightweight EVA foam to achieve a lightweight feel, the rear palm is filled with POPO energy ball high elasticity material, soft and elasticity doubled (compared with the previous generation of rebound increased by 20%, cushioning improved by about 10%, wear-resistant increased by about 9%).,Knitted Fabric + Synthetic Leather Knitted Fabric RB+IP Knitted Fabric+PuFoam