HI-FIBER High Strength Fiber UpperAdopts HIRACER HI-FIBER upper, with a density lower than human hair strands. Special weaving creates breathable micro-holes for enhanced breathability, toughness and durability. Built-in supportive reinforced structure ensures seamless fit; paired with an integrated flywire tongue, it delivers a technologically advanced, ultra-breathable upper.HiFoam Max+HiFoam∞ Upper Layer Midsole of The Foaming BoardUpper Midsole: Constructed with an all-new HI-performance sheet molding process for premium underfoot feel. It reduces midsole weight while delivering exceptional cushioning and rebound, boosting energy return efficiency for ultra-responsive bounce.Lower Midsole: Adopts the Dynamic Motion tech foam process to cut midsole weight and enhance shock absorption. It elevates energy return rate for powerful, HI-impact rebound.KPU Abrasion-Resistant & Non-Slip OutsoleFull-length KPU non-slip studs deliver superior wet traction and exceptional abrasion resistance, boasting powerful grip to conquer slippery challenges with confidence.