Comfortable, resistant and ultra-reinforced technical sock. Shock absorbent heel and toe in NOSTATEX and COOLMAX. Its mid height leg has a protective tongue which makes them easy to put on for a race and once turned over prevent stones from getting into the shoe. Protection of the medial and lateral malleolus plus reinforcement on the Achilles tendon. The seamless wide ribbed trim offers excellent support and optimal comfort. The sole is reinforced to improve arch support. The FRONT AIR system offers a better ventilation of the top of the foot. The lightweight knit at the point of flexion allows for easy movement of the foot.