The next generation of great ASICS performance running footwear is ready to step. Synthetic leather offers the lightweight feel and natural flexibility you need and synthetic fibers add strength to the construction. FlyteFoam™ Propel technology keeps your feet moving Rearfoot GEL™ technology cushions impact and propels you through toe-off. FlyteFoam™ midsole material is 55% lighter than standard EVA. Full-ground contact outsole for full contact.