Mesh-Synthetic Rubber sole FlyteFoam Lyte Technology – ASICS lightest weight midsole formulation that provides continuous cushion thanks to organic nano fibers. SpevaFoam 45 Lasting – Employs 45 degree full length SpevaFoam 45 lasting material for a soft platform feel and improved comfort. Ortholite Sockliner – Moisture management (Ortholite is a registered trademark of ATP Manufacturing LLC). SpevaFoam Midsole Material – Improves bounce back characteristics and decreases midsole breakdown. 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.