Upper: Mesh and synthetic upper is breathable and comfortable. The upper contains reflective materials designed to enhance visibility during low light hours. P.H.F.® (Personal Heel Fit) features two layers of memory foam in the collar that mold to the athlete's heel, creating a personalized fit.

Midsole: The Impact Guidance System (I.G.S.®) employs linked componentry that enhances the foot's natural gait from heel strike to toe-off. The Space Trusstic System® is a midfoot stabilizer that creates a pocket between the Trusstic System® device and the midsole, allowing for controlled midsole deformation and more efficient foot function. Solyte® midsole material is a lighter weight midsole compound than ASICS' standard EVA and SpEVA® that provides enhanced cushioning and durability. The DuoMax® support system features a dual-density midsole system positioned sport specifically to enhance support and stability. A Dual density Solyte® 55 last employs 55 degree density Solyte® lasting material in the heel and forefoot for improved comfort. Rear and forefoot GEL® cushioning system attenuates shock during impact and toe-off phases and allows movement in multiple planes as the foot transitions through the gait cycle. A removable ComforDry™ sockliner provides cushioning performance and anti-microbial properties for a cooler, drier, and healthier environment.

Outsole: AHAR®, ASICS High Abrasion Rubber, is placed in critical areas of the outsole for exceptional durability. A DuraSponger® outsole features a blown AHAR® rubber compound for enhanced cushioning and durability in the forefoot. Guidance Liner™ vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.

Available in widths AA (Narrow), B (Medium), D (Wide), and EE (Extra Wide).

Recipient of the American Podiatric Medical Association Seal of Acceptance, which recognizes products that have been found beneficial to foot health, and of significant value when used in a consistently applied program of daily foot care and regular professional treatment.

"The 2160 wraps the foot in a soothing embrace that makes long runs feel much shorter. And the interior of this update has even more soft lining in the upper than the previous version, creating a snug fit without pressure points. Asics softened the Gel and foam midsole and added deep grooves in the outsole to provide a smooth feel through toe-off. Wear-testers loved the overall fit and not-too-mushy underfoot feel of this shoe. We recommend the 2160 as a supportive high-mileage shoe for normal- to low-arched runners."