Trail running, daily training Upper (instep): 89.5% Nylon, 10.5% SpandexCuff: 90.2% Nylon, 9.8% Spandex COOLMAX® yarn wicks moisture efficiently to keep feet dry and comfortable. Lycra® provides a snug, supportive fit with enhanced elasticity. High-density knitting construction ensures a secure and comfortable fit during movement. Breathable mesh structure promotes fast moisture release for all-day dryness. Terry cushioning reduces impact and pressure during trail running. Left-right specific toe design improves fit and comfort. Arch support band prevents slipping during intense movement. Seamless toe construction minimizes friction and enhances comfort. 3D heel construction delivers a locked-in and stable fit. Integrated Polygiene® antibacterial technology keeps socks fresh for longer.