Overcome every obstacle and enjoy the lightness of running with the X-SOCKS® RUN DISCOVERY. The patented high-tech features of the X-BIONIC 4.0 generation create the ideal conditions for running smoothly, sprinting faster, and arriving at the finish line relaxed. The fit is perfectly tailored to the feet and promotes well-being in all conditions. The breathable 3D-knitted instep protector with AirVent Zone optimizes climatic conditions on the upper foot. The perfected Air-Conditioning Channel® 4.0 also enhances ventilation by pumping fresh air towards the sole with every step. Additionally, the 360-degree reflective yarn Albedo® on the outer seam increases safety in the dark.