Asics Women's Gel-Kayano 21 Running Shoes

The Gel-Kayano 21 is updated with nothing but the best in Asics technical innovation, featuring the next generation of FluidRide™ and an Ortholite 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™.

Features:

• 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™ provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability
• 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
• Rear- 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
• Ortholite 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®: 3 mm of additional height on women's models helps relieve achilles tension