These perfect women's running shoes Joma SIERRA LADY 2201 are for training and racing in trail terrain. The upper is made of breathable and durable mesh material and has the FLEXSHIELD system for better foot protection. A perfect fit is guaranteed by a 100% elastic tongue and nylon lining with elastane. The insole is made of pre-formed EVA foam adapted to the shape of the foot. The midsole is made by the Full Dual Pulsor system - it consists of a double phylon in various densities which optimises cushioning. It contains a piece of phylon with a higher density which provides higher stability. The sole is made of durable DURABILITY rubber which guarantees grip in all situations.