Fit and Design: Performance fit socks Crew height provides ample coverage Made with merino wool to provide thermoregulation, sweat management, and odor resistance Ribbed leg bolsters comfort Medium thickness, full-sock cushioning is ideal for heavier loads and higher-volume footwear Technology: Virtually Seamless(TM) toe provides ultimate in-shoe fit and comfort Additional Details: Machine wash warm, inside out Do not bleach Tumble dry low Do not iron Do not dry clean