The GT 2120 Trail from Asics provides cushioning support and traction for all types of terrain. Impact Guidance System links componentry that enhances the foots natural gait from heel strike to toe-off. GEL Cushioning Systems attenuates shock during impact phase and toe-off phases. Space Trusstic System 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. Performance Trail Upper reduces heat and perspiration build up inside the shoe while providing a highly-resistant upper. Gusset construction prevents debris from entering the shoe and causing irritation.