Engineered Stretch Mesh Upper - Provides a natural feel whilst offering your feet great ventilation whilst your run. BoostTM - Absorbs energy from your footstrike and charges it into forward momentum. ADIWEARTM - For superb grip, more durable and longer lasting mileage. ClimachillTM Fabric - Conducts heat away from the body, keeping you cool. Air Mesh Tongue - Provides great breathability, helping to keep your feet cool.