The ENERGY sole integrates the latest generation Puls'air.Its injected sole offers excellent resistance to wear and makes for an extremely lightweight product.The air bubble is now connected to the outer sole and allows for natural ventilation inside the shoe as well as optimum shock-absorption at the heel.The full-grain leather has been carefully selected for its suppleness.The lining and the removable inner-sole in breathable microfiber allow for better regulation of transpiration and ensure maximum comfort thanks to their thermoregulatory and anti-allergenic properties.