Hot days are no longer a problem on your hikes: The Trekking One Cool socks are the lightweight version of the revolutionary Trekking One. These socks combine the comfort and advanced functionality of the innovative Zerocuff technology with the breathability and lightness of the bio-based Natex yarn. The absence of a cuff allows for better blood circulation, ensuring that your feet do not swell or tire even after hours of walking. The Cool Air Flow technology provides improved airflow around the foot. The 3D protective structures, located at critical points on the foot and ankle, ensure all-around protection: the result? The indispensable sock for your adventures.