Genesis XProduct descriptionThe Spira® Genesis X Stability Runner provides support for the mild to moderate pronator by incorporating a wide heel platform and a high density medial post. A firm midfoot shank insures a smooth transition from heel strike to toe off. The patented WaveSpring® technology provides unequaled cushioning properties without compromising stability. The full strobel construction offers a lightweight and flexible solution to lasting. The Dynamic Fit System™ adjusts to the changing dynamics of the instep during the gait cycle. Intended useA mid to high mileage training shoe for indoor and road surfaces. Runner typeFor runners who need extra control and support in conjunction with excellent cushioning. TechnologyTri-spring configured WaveSpring® technology that reduces peak impact forces while providing unparalleled resilience. Last typeSemi-curved training last. Lasting methodStrobel lasted construction. Upper materialsBreathable air mesh vamp combined with synthetic leather support overlays. SocklinerRemovable, molded EVA foot-bed. Orthotic friendly. MidsoleCompression molded EVA incorporating a single WaveSpring® in the heel and a dual WaveSpring® design in the forefoot including a high density medial post for additional stability. OutsoleHigh abrasion rubber strike pad in conjunction with 4 rubber pods creating a durable yet flexible sole. WeightMen’s Size 9: 13.1 oz |