Power to the top: Our trail running socks support your calves with targeted compression, especially when the trails get steeper and the terrain more difficult. Thanks to Targeted Compression Zones, your muscles get that crucial boost when they need it. The Run Ultralight Compression Socks are our running socks for the highest performance. The ultralight socks provide optimal ventilation, fit your foot like a second skin and ensure high comfort even in warm climates. Optimal energy management and high breathability thanks to wide-meshed knitted fabric The Run Ultralight Compression Socks combine the best features of lightweight sports compression socks: the ultra-thin knit is particularly breathable and thus ensures a pleasant running feeling - even on warmer days. Integrated compression zones support the muscles in the calf and stabilise the ankle and foot. On the calf, unique compression zones reduce muscle vibrations and stimulate blood circulation. As a result, the muscles tire more slowly when running and more free energy reserves remain. The "Infinity Zone" offers protection against overstraining: it slightly raises the arch of the foot and supports the ankle joint with light pressure. The "Relief Sole" and "Heel Protection" comfort zones protect the sole of the foot and reduce the pressure on the heel when the foot is placed in the running shoe. The "Achilles Comfort" cut-out relieves the Achilles tendon and prevents over-irritation in this sensitive area. The correct size of the Run Ultralight Compression Socks is determined by the shoe size and the circumference of the calf at the strongest point. This ensures that the sports compression socks fit snugly against the skin and work optimally. They are manufactured in Germany to the highest quality standards. Material: 84% polyamide,16% elastane