The 2000 series continues to be the industry's most popular enthusiast running shoe. The ASICS® GT-2120™ continues the tradition by delivering all the great comfort and fit features that runners expect from the series, with the added benefit of Solyte™ midsole material for an even lighter ride. Impact Guidance System (IGS®) enhances the foot's natural gait from heel strike to toe off. Solyte™ midsole material offers improved cushioning and durability. Heel and forefoot GEL® Cushioning Systems. Space Trusstic System® is an advanced system that creates a pocket between the Trusstic System® device and the midsole, allowing for greater midsole deformation and more efficient foot function. DuoMax® support system helps ensure that the shoe maintains proper support for the foot during the critical transition from heel strike and toe off. Wt. 11.3 oz.