As worn by Ana Ivanovic, the lightest performance tennis shoes now come equipped with adiTuff reinforcement around high-tear areas for even greater durability.Dual Density Heel Counter for comfort and cushioning.Sprint Skinfor lightweight and stability.Herringbone outsole for traction on hardcourts and clay.adiPRENE for cusioning propulsion.Durable adiWEAR outsoles, same as adiPower Barricades.adiTuff system through the upper for better abrasion resistanceOrtholite Mesh sock liner.Narrow fit with medium arch support.