ASICS fuzeX running shoes are named for the brand new FuzeGEL™ midsole material they feature, which provides excellent rearfoot shock absorption that then turns into superb forefoot bounce back. This exciting addition to the ASICS line-up offers a unique ride with full ground contact and quick responsiveness. Ideal for underpronators to neutral runners.Upper: Seamless Construction reduces the potential for irritation and friction caused by traditional stitches and seams. Padded tongue and heel collar enhance comfort. Lace-up front offers an adjustable fit.Midsole: FuzeGEL™ combines GEL® property and foam to create lightweight adaptable comfort, tuned to provide rearfoot shock absorption that shifts to forefoot bounce back. ComforDry™ Sockliner provides cushioning performance an anti-microbial properties for a cooler, drier, healthier environment. ComforDry™ Lasting features plush underfoot comfort while providing excellent moisture management, high level breathability and anti-microbial properties. Removable insole.Outsole: AHAR® ASICS High Abrasion Rubber is placed in critical areas of the outsole for exceptional durability.