Weight: 170 g (size UK 5.5)boost™'s energy-returning properties keep every step charged with an endless supply of light, fast energyWoven textile upperTORSION® SYSTEM for midfoot integrityNon-slip lining for comfort and performance; Moulded responsive EVA sockliner for anatomical fit and great step-in comfortADIWEAR™ outsole offers the ultimate in high-wear durability