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Men's Genesis X
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The 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.
To learn more about SPIRA® technology click on our WaveSpring® page.
SPIRA Shoes typically run 1/2 size smaller than regular street shoes.
Order your shoes 1/2 LARGER than you would regularly wear.
| Specifications | |
| Technology | Tri-spring configured WaveSpring® technology that reduces peak impact forces while providing unparalleled resilience. |
| Last Type | Semi-curved training last. |
| Lasting Method | Strobel lasted construction. |
| Upper Materials | Breathable air mesh vamp combined with synthetic leather support overlays. |
| Sockliner | Breathable air mesh vamp combined with synthetic leather support overlays. |
| Midsole | Compression molded EVA incorporating a single WaveSpring® in the heel and a dual WaveSpri |
| Outsole | High abrasion rubber strike pad in conjunction with 4 rubber pods creating a durable yet flexible sole. |
| Weight | 13.1 ounces for Men’s size 9 |
| Available Widths | Men's Medium & Wide |
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Specials
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 Men's Stinger XLTThe SPIRA® Stinger XLT with patented WaveSpring® technology is a high performance trainer and is an ideal race day shoe for the majority of runners who need the support of a training shoe, with the lightweight responsive qualities of a racing flat. The Stinger XLT shares many of the same characteristics as the Stinger Racing Flat. It is an extremely well cushioned shoe that maximizes racing performance and reduces fatigue. The two independent forefoot and one heel WaveSpring® are low profile, lightweight springs made of stainless steel to maximize cushioning and resiliency.
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 Stinger EliteThe Stinger Elite, a light weight racing flat, is a well cushioned training shoe that provides a high level of responsiveness and protection against fatigue issues normally associated with light weight racing shoes.
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 Women's Stinger XLTThe SPIRA® Stinger XLT with patented WaveSpring® technology is a high performance trainer and is an ideal race day shoe for the majority of runners who need the support of a training shoe, with the lightweight responsive qualities of a racing flat. The Stinger XLT shares many of the same characteristics as the Stinger Racing Flat. It is an extremely well cushioned shoe that maximizes racing performance and reduces fatigue. The two independent forefoot and one heel WaveSpring® are low profile, lightweight springs made of stainless steel to maximize cushioning and resiliency.
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