A moderate compression, merino wool, no-show sock that sits below the ankle.Moderate compression provides contoured support and prevents bunchingSoft, natural Merino Wool throughout the sock wicks moisture to keep you dry and comfortable, year-roundChanneled Upper provides ventilation to increase breathabilityVirtually invisible seam eliminates friction in the toeboxFlex Zones in key areas, have a half-density weave that prevents bunching Y-shape heel stitch creates a contoured heel pocket that moves with your footArch Band Support maintains shape to deliver lasting supportMedium cushionMade in the USA