The Babolat PROPULSE FURY AC are designed for stability, durability, and comfort. Babolat cooperated with scientists to identify 9 pressure points in the foot so the Active Flexion technology can provide the best cushioning, support, and feedback. Michelin Performance outsole provides agility, precision, speed, and durability With a specially designed outsole. The optimal material layering uses the new Ti-FIT technology for strategic support of the heel, the instep, and the toe area.