Running, cycling or winter sports: With X-Socks®, you’re always perfectly prepared for your athletic adventures.

Whether you're a beginner or a pro athlete, our three distinct X-Socks® technology categories offer optimal support for any level and for any type of sport.

DISCOVER - PERFORM - EXPERT

Our Expert category is made for elite athletes who demand nothing but the best. If you're an ambitious athlete looking for unparalleled performance and maximum protection, then our Expert category is for you.

All Expert-products are engineered with the most advanced technologies and materials available, providing you with the ultimate support for your sport. You'll feel the difference in every step.

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X-SOCKS® RUN EXPERT EFFEKTOR OTC—the pinnacle of functional sock technology for dedicated runners. Designed with the most advanced features, this high-performance sock ensures a flawless running experience that maximizes comfort, protection and ventilation throughout every stride.

The tight Mesh structures and numerous Airflow and Air Conditioning zones across the sock optimize temperature regulation and promote the circulation of fresh air to keep your feet cool and dry. Integrated Protectors and Suppronation® Bandages offer reliable support and stabilization, ensuring optimal foot placement and minimizing the risk of injury. The Toe Protector and Toe-Tip Protector protect against impact and abrasion, and the Instep and Heel Protectors offer additional cushioning for a smooth, effortless stride. The integrated Roll Support cushions provide consistent arch support for long runs. The Effektor edition offers additional compression zones around the calf, maximizing muscle endurance and reducing the risk of cramps.

With X-SOCKS® RUN EXPERT EFFEKTOR OTC, you can expect unparalleled support and comfort, ensuring you can focus entirely on your run.

Whether you're training for a marathon, a competition or trying to beat your personal best—our Run Expert series is a game-changer that enables you to exceed your physical limits.

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