100% Synthetic Care instructions Machine Wash Origin Made in the USA or Imported Sole material Rubber About this item Engineered knit upper offers a supportive and comfortable foothold: Rearfoot and Forefoot GEL Technology Cushioning System: Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle. FLYTEFOAM Technology: Provides lightweight cushioning. FLYTEFOAM Propel Technology: ASICS energetic foam formulation that provides supreme bounce thanks to a unique elastomer compound. 3D SPACE CONSTRUCTION feature improves compression at footstrike