The ASICS® GEL-Kayano® XIII running shoe continues to offer the ultimate blend of support and cushioning that the series is known for. All the fit and comfort features return as well, with the added benefit of new high tech upper materials and an expanded GEL® Cushioning System. Impact Guidance System (IGS®) enhances the foot's natural gait from heelstrike to toe-off. Solyte™ midsole material offers improved cushioning and durability. Space Trusstic® System creates a pocket between the Trusstic® System device and the midsole, allowing for greater midsole deformation and more efficient foot function. GEL® Cushioning Systems attenuate shock during impact phase and toe off phase. Biomorphic Fit™ upper provides a superior fit and function. DuoMax® support system helps ensure that the shoe maintains proper support for the foot during the critical transition from heel strike to toe off. Wt.12.6 oz.