With it's surprisingly supportive and responsive ride, the ASICS® GEL-DS Trainer® XII running shoe delivers on the key features that runners have come to expect from this leader in the lightweight training category. Biomorphic Fit™ upper provides a superior fit and function. Impact Guidance System (IGS®) enhances the foot's natural gait from heel strike to toe off. Solyte™ midsole offers improved cushioning and durability. GEL® Cushioning Systems attenuate shock during impact phase and toe off phases. Space Trusstic System® creates a pocket between the Trusstic System® device and the midsole, allowing for greater midsole deformation and more efficient foot function.