Hiking, Trekking Instep: 36.5% Nylon, 28.5% Cotton, 27.3% Polyester, 7.7% Spandex(Excluding elastic components and decorative yarns) COOLMAX® yarn wicks moisture quickly, keeping feet dry and comfortable. Breathable mesh on the instep enhances airflow, allowing heat and moisture to escape efficiently. Ankle support structure provides stable and comfortable support during hiking. Terry cushioning at key zones reduces pressure and impact during long-distance walks. Arch support band keeps the sock in place and prevents slipping. Left and right specific fit for improved comfort and performance. Seamless toe construction minimizes friction and prevents irritation. 3D heel design ensures a secure fit without slipping. Polygiene® treatment helps control odor and keeps socks fresher for longer.