The X-Socks® Trek Outdoor socks have been designed to maximize comfort and reduce the risk of blisters. The patented technologies in the hiking socks provide unique advantages. The patented Air-Conditioning Channel® 4.0 runs along the side of the sock, ensuring effective ventilation with every step. It allows fresh air to reach the sole of the foot and utilizes the energy generated with each step to pump out damp air. This creates a barefoot-like climate inside the sock, preventing the foot from becoming damp and forming blisters. Another advantage comes from the various protection technologies integrated into the sock. The Lambertz-Nicholson Achilles tendon protector 4.0 has been developed to optimally protect the Achilles tendon, and the integration of the Suppronation® XX-Cross® bandage helps prevent injuries to the ankle.