adidas have unleashed fresh colourways of their uncaged high-performance runner. Responsive, supportive and flexible, the UltraBoost charges each and every step with its energy-returning technology and a sock-like Primeknit upper to support the foots natural flex from heel to toe. The Continental Rubber outsole rounds off this runner with traction in all conditions.

• Primeknit Upper
• STRETCHWEB Rubber Outsole
• boost's Energy-Returning Properties
• TORSION SYSTEM
• Continental Rubber Outsole
• Molded TPU For Stability
• Style Code: BB3901