The GEL-Kayano® 21 is updated with nothing but the best in ASICS technical innovation, featuring the next generation of FluidRide™ and a ComforDry X-40 sockliner for the lightest and most luxuriously stable ride yet. Mild to moderate overpronators will enjoy a more comfortably secure upper, uniquely designed with a new heel construction that complements the premium FluidFit® upper and Heel Clutching System™.
FluidRide™: The latest evolution in ASICS midsole technology, FluidRide™ provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability.
ComforDry X-40 Sockliner: This premium sockliner features higher rebound properties while providing excellent moisture management, high-level breathability, and anticrobial properties.
FluidFit™: ASICS FluidFit™ upper technology combines multi-directional stretch mesh with stretch reinforcements that adapt to the athlete's foot, creating a truly customized glove-like fit.
Heel Clutching System™: Exoskeletal heel counter provides improved support and creates improved heel fitting environment.