The Mizuno Thermal Charge technology effectively warms the agonist muscles, enhancing performance and recovery. The outer material is made of 20K waterproof and 25K breathable fabric, providing excellent protection in heavy rain. Ventilation on the front and back ensures breathability. Two zippered front pockets offer secure storage. Reflective details improve visibility during night runs. Sweat seams at the sleeve cuffs and hem. The hood protects you from the elements. The Dynamic Fit pattern ensures a better anatomical fit of the garment and greater freedom of movement. 100% nylon.