Ultra Boost (Collegiate Navy)
• adidas Primeknit is carefully engineered to naturally expand with your foot while you run to give you a more comfortable fit and help reduce irritation
• boost™'s energy-returning properties keep every step charged with an endless supply of light, fast energy
• TORSION® SYSTEM for midfoot integrity; Molded 3-Stripes and heel counter for support and optimum heel hug
• STRETCHWEB Continental rubber outsole is lightweight and elastic, adapting to the ground for stability and working strategically to optimize the unique properties of boost™ from touchdown to push-off
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