The world's leading high-performance running shoe is back -- and better than ever. The new upper and ComforDry™ sockliner provide superior fit. Full-length Guidance Line™ means a more efficient transition through the gait cycle.

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.
Guidance Line™
Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.
Discrete Heel Unit
Takes the Impact Guidance System (I.G.S.®) to a new level by creating our highest degree of shock attenuation and stability.
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.
ComforDry™ Sockliner
Provides cushioning performance and anti-odor properties for a cooler, drier, healthier environment.
Asymmetrical Lacing Design
An anatomically correct lacing environment that reduces potential for irritation and provides improved comfort and fit.
DuoMax® Support System
A dual density midsole system positioned to enhance support and stability, positioned sport specifically.
Dual Density Solyte® Lasting
Employs different densities of Solyte® lasting material in heel and forefoot for improved comfort.