Synthetic-and-mesh Imported Rubber sole SpevaFoam 45 Lasting – Employs 45 degree full length SpevaFoam 45 lasting material for a soft platform feel and improved comfort. FlyteFoam Lyte Technology – ASICS lightest weight midsole formulation that provides continuous cushion thanks to organic nano fibers. FlyteFoam Propel Technology – ASICS energetic foam formulation that provides supreme bounce thanks to a unique elastomer compound. DuoMax Support System – A dual density midsole system positioned to enhance support and stability, positioned sport specifically. Trusstic System technology – Reduces the weight of the sole unit while retaining the structural integrity of the shoe.