"2 Pack - Just for Kids. A very comfortable year 'round Merino wool hiking sock. Crew length. Turned welt X-TRA stretch top. Elastic 3x1 terry rib leg. Full cushion thermalined foot. Nylon plaited to outside for extra wear. Merino wool plaited to inside for soft, cushy comfort. Content: 70% Merino Wool, 30% Stretch Nylon, except 3% Lycra Spandex added to top"