For runners seeking a supportive lightweight trainer. Long the perfect product solution for runners in search of a go-fast ride with a bit of added stability, we've added gait optimizing Guidance Line™ and the superior fit of Clutch Collar System™.

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.
Clutch Collar System™
A descendant of the Heel Clutching System, an Endoskelatal collar compliments the exoskelatal heel counter for a uniquely secure fit.
Guidance Line™
Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.
Propulsion Trusstic®
Mimics connective tissue in the foot by creating tension as foot enters propulsion stage.
Space Trusstic System®
This midfoot stabilizer creates a pocket between the Trusstic System® device and the midsole, allowing for controlled midsole deformation and more efficient foot function.
Biomorphic Fit ® Upper
Stretch material strategically placed on the upper helps to reduce buckling and the potential for irritation.
Asymmetrical Lacing Design
An anatomically correct lacing environment that reduces potential for irritation and provides improved comfort and fit.
Dual Density Solyte® Lasting
Employs different densities of Solyte® lasting material in heel and forefoot for improved comfort.