STRONGER: LAMBERTZ-NICHOLSON ACHILLES TENDON PROTECTOR 4.0. The Achilles tendon lies in the opening of the cushion and is thus protected from pressure and friction.
ASYMMETRIC O-RING BANDAGE. Stabilises tendons, muscles and joints in the ankle area without restricting movement.
AIR-CONDITIONING CHANNEL® 4.0. Air-conducting 3D structures and high-tech special yarn promote intensive ventilation of the feet.
100% PURE SWISS ENGINEERED. Made in Italy. 700+ international awards and test wins, 800+ patent registrations for the products with the "X".
DetailsTake the intelligent shortcut to the future of running with the X-SOCKS® RUN FAST 4.0! Thanks to patented technologies, you can effortlessly reach your goal. This special sock with barefoot climate benefits from the latest innovations in X-SOCKS® technology and offers you incomparable wearing comfort. More support, secure protection and continuous thermoregulation promote your performance and endurance. Your foot gets a firm hold in the anatomically shaped footbed and the ASYMMETRIC O-RING BANDAGE stabilizes your ankle joint. Protectors keep the toes, heel and ankle from being injured by pressure and friction. The optimized Air-Conditioning Channel® 4.0 delivers fresh air into the shoe every step of the way, stopping moisture and reducing the risk of blistering. The newly designed Lambertz-Nicholson Achilles Tendon Protector 4.0 protects the sensitive area above the heel. Reinforced, two-part padded zones absorb pressure, friction and shocks even more effectively. Albedo® 360° Reflective Technology increases safety in the dark.
Polyamide (80%) Polypropylene (17%) Elastane (3%)