Upper: Mono-Sock® is an elastic internal sleeve that replaces a traditional tongue for a sock-like fit. Personal Heel Fit (P.H.F.) system uses two layers of memory foam line the collar and mold to the athlete's heel, creating a personalized fit. Reflective accents improve visibility. Internal heel counter with padded heel collar for increased support and comfort. An open mesh upper with a durable and breathable mesh overlay provides outstanding ventilation with optimal durability. Synthetic overlays provide increased support.

Midsole: Solyte® midsole material provides enhanced cushioning and durability while weighing less than ASICS' standard EVA and SpEVA. Flex grooves along the entire length of the shoe promotes natural foot movement by providing optimal flexibility. Forefoot and rearfoot GEL® cushioning systems attenuate shock during the impact phase and allows movement in multiple planes as the foot transitions through the gait cycle. California Slip Lasting provides increased stability and comfort. A removable ComforDry™ sockliner provides cushioning performance and anti-microbial properties for a cooler, drier, and healthier environment. Guidance Line is a vertical flex groove that decouples the tooling along the line of progression for enhanced gait efficiency.

Outsole: AHAR® (ASICS High Abrasion Rubber) is placed in critical areas of the outsole for maximum durability.

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.