Thermal socks model H6, knee-high, for sports in extreme cold conditions and/or long static periods at very low temperatures. Made with no seams around the perimeter to prevent chafing and friction, and with merino wool and Mulberry silk, a natural material with high temperature retention power. In addition, it has an extra A+ fit without tightness on the shank and an adaptability and anti-slip strip for greater fit, which also has reinforcements in the highest friction areas. Asymmetric model with new sizes and measurements from this new autumn-winter season. Designed with Bmax Merino Silk technology to combat the main causes of blisters such as overheating, moisture and friction. Developed with the total cushioning footbed structure, a fully cushioned sole. And supported by the Silver Base Layer mesh, developed with high antibacterial power.