Product Details Fabric Type 100% Synthetic Care Instructions Machine Wash Origin Imported Sole Material Rubber About this Item OrthoLite sockliner offers excellent moisture management: AmpliFoam midsole is engineered to maintain durability at softer densities: Breathable mesh upper: AmpliFoam Midsole - Engineered to maintain durability at softer densities, providing better flexibility, comfort, and platform adaptability ideal for natural running. Guidance Line Midsole Technology - Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency….new with box multiple sizes