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 over-pronators will enjoy a more comfortably secure upper, uniquely designed with a new heel construction that complements the premium FluidFit upper and Heel Clutching System. Weight: 8.9 oz. Heel Height: 24mm. Forefoot Height: 11mm.
Impact Guidance System (I.G.S®)
ASICS® design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike to toe-off.
FluidRide®
FluidRide® provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability.
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.
Rearfoot and Forefoot GEL® Cushioning Systems
Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle.
Dynamic DuoMax® Support System
This evolution of DuoMax® system enhances stability and support, with reduced weight and increased platform support.
Guidance Line®
Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.
Guidance Trusstic System®
This Trusstic System® integrates Guidance Line® construction for enhanced gait efficiency while providing midfoot structural integrity.
ComforDry X-40 Sockliner
This premium sockliner features higher rebound properties while providing excellent moisture management, high-level breathability, and anticrobial properties.
Gender-Specific Cushioning
Women's models feature a lower-density top layer in the midsole, allowing female athletes to better enjoy the benefits of midsole compression.
Plus 3®
3mm of additional height on women's models helps relieve achilles tension.
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