Hiking, Trekking, Backcountry Travel Instep: 60.3% Polyester, 37.1% Cotton, 2.6% Spandex(Excluding elastic components and decorative yarns) COOLMAX® yarn wicks moisture efficiently to keep feet dry and comfortable. LYCRA® fiber provides a snug, flexible fit for enhanced comfort. Breathable mesh construction promotes airflow and accelerates heat and moisture release. Terry cushioning at heel and toe reduces impact and pressure during movement. Arch support band ensures a secure fit and prevents slipping. Seamless toe construction minimizes friction and avoids irritation. 3D heel structure delivers a locked-in fit without shifting. Polygiene® treatment helps control odor for long-lasting freshness.