No other shoe in its class comes close to its comfort. With loads of adiPRENE and adiPRENE beneath your feet, this shoe delivers maximum cushioning for fun, relaxed runs. Upper is Air mesh tongue for maximum ventilation. Air mesh upper for maximum ventilation. Textile/synthetic. Lining is Non-slip lining for comfort and performance. Inlay is EVA insole for comfort. Midsole is Injected EVA for long-term lightweight cushioning. Outsole is Full rubber for durability in high-wear areas.