The 15th version of the ASICS® GEL-Kayano® running shoe lives up to it's reputation of delivering cutting edge components to complement the shoe's exceptional performance and comfort. A new Asymmetrical Lacing design for improved upper fit and a new midsole platform that delivers the famous GEL-Kayano® ride that runners expect. Asymmetrical upper enhances upper fit and comfort while minimizing the potential for irritation. PHF® (personal heel fit) memory foam lined heel collar molds to the athlete's heel, creating personalized fit. ComforDry™ sockliner provides optimal cushioning performance in a cooler, drier, healthier environment. Solyte™ midsole is lighter than ASICS'® standard EVA and SpEVA™ combined with improved cushioning and durability. Impact Guidance System (I.G.S.®) features linked componentry that enhances the foot's natural gait from heel strike to toe off. DuraSponge® outsole offers durability and cushioning with less weight. Wt. 13.0 oz.