Synthetic Leather Upper : Lightweight and comfortable, enhancing performance and fit........ Solyte Midsole material : A lighter weight midsole compound than ASICS standard EVA and SpEVA.... Also features enhanced cushioning and durability....... Rearfoot GEL Cushioning System : Reduces shock during impact phase and allows for a smooth transition to mid stance........ Trusstic System : Reduces the weight of the sole unit while retaining the structural integrity of the shoe........ DuoMax Support System : A dual density midsole system positioned to enhance support and stabilize..... Positioned sport specifically........ Solyte 65 : Employs 65 degree Solyte lasting material for a firmer more stable platform feel........ Triple Option : Flexibility for a varied spike configuration. .......