Show up and show out in ASICS GEL-Cumulus 21 LITE-SHOW™ running shoes! These reliably comfortable shoes are perfect for low-light runners looking for a little support and a lot of comfort. This is the GEL-Cumulus 21 you know and love--loaded with technology and features that will keep you comfortable mile after mile--plus, it features LITE-SHOW™ reflective detailing to keep you safe during dusk and dawn runs.

Upper: Features a multi-directional mesh that is knit in a way that provides more support in some areas and more space between the yarn in other areas to reduce the weight and enhance breathability. A contoured sockliner better matches the natural shape of the foot for a better fit. An internal heel counter provides support and stability. It is positioned between the internal and external fabric in the rearfoot to reduce the chance of irritation.

Midsole: FluidRide® combines cushioning and lightweight responsiveness. Impact Guidance System (I.G.S.®) employs linked componentry to enhance the foot's natural gait from heel-strike to toe-off. GEL® Cushioning Systems attenuate shock during impact and toe-off phases and allow movement in multiple planes as the foot transitions through the gait cycle. FlyteFoam® Midsole technology is lightweight and provides long-lasting, responsive cushioning.

Outsole: Guidance Trusstic System® provides a lighter and more stable outsole. AHAR® ASICS High Abrasion Rubber placed in critical areas provides exceptional durability.